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      <image:caption>Image Credit: Figure 2.6. Thomson’s cathode-ray experiments. Adapted from Chemistry 2e: 2.2 Evolution of atomic theory (OpenStax, 2019), https://openstax.org/books/chemistry-2e/pages/2-2-evolution-of-atomic-theory, CC BY 4.0. Image credits: modification of work by Nobel Foundation; modification of work by Eugen Nesper; modification of work by Kurzon/Wikimedia Commons.</image:caption>
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      <image:caption>Image Credit: Figure 2.8. Early atomic models: (a) Thomson’s “plum pudding” model; (b) Nagaoka’s Saturn-like model. Adapted from Chemistry 2e: 2.2 Evolution of atomic theory (OpenStax, 2019), https://openstax.org/books/chemistry-2e/pages/2-2-evolution-of-atomic-theory, CC BY 4.0. Image credits: modification of work by Man vyi/Wikimedia Commons; modification of work by NASA/Wikimedia Commons.</image:caption>
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      <image:caption>Image Credit: Figure 2.9. Rutherford’s gold-foil experiment. Adapted from Chemistry 2e: 2.2 Evolution of atomic theory (OpenStax, 2019), https://openstax.org/books/chemistry-2e/pages/2-2-evolution-of-atomic-theory, CC BY 4.0.</image:caption>
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      <image:caption>Edited image from OpenStax. (2025). Figure 7.2.4: Starch, glycogen, and cellulose are three of the most important polysaccharides. In Microbiology (7.2: Carbohydrates). LibreTexts. CC BY 4.0.</image:caption>
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      <image:title>Browse our Entire Collection - Graphing Quadratic Functions - Standard Form - Make it stand out</image:title>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/cell-division-mitosis-unraveled</loc>
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    <priority>0.5</priority>
    <lastmod>2026-07-16</lastmod>
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      <image:caption>Join our Member Library for free resources like our Cell Division Graphic Organizer</image:caption>
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      <image:title>Browse our Entire Collection - Cell Division: Mitosis Unraveled - Make it stand out</image:title>
      <image:caption>Graphic summarizing the stages of mitosis. The stages shown are: Interphase: The cell grows and replicates its DNA. Prophase: Chromosomes condense, and the nucleus dissolves. Metaphase: Chromosomes align at the center of the cell. Anaphase: Chromosomes are pulled apart to opposite ends of the cell. Telophase: Chromosomes reach opposite ends, and the cell starts to furrow. Cytokinesis: The cell divides into two identical daughter cells, and the nucleus reforms.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/6c51f50e-96a1-4544-a96b-d66220459892/Cytokinesis.png</image:loc>
      <image:title>Browse our Entire Collection - Cell Division: Mitosis Unraveled - Make it stand out</image:title>
      <image:caption>Graphic illustrating the process of cytokinesis in animal and plant cells. In animal cells, cytokinesis occurs through the formation of a cleavage furrow, where the cell membrane pinches inward to separate the two daughter cells, which are identical. In plant cells, a cell plate forms in the middle of the cell, dividing the cytoplasm and creating two identical plant daughter cells, each with its own nucleus and organelles.</image:caption>
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  </url>
  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/henrietta-lacks-and-the-immortal-cell-cycle</loc>
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    <lastmod>2025-07-24</lastmod>
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      <image:title>Browse our Entire Collection - Henrietta Lacks and the Immortal Cell - Make it stand out</image:title>
      <image:caption>Image from National Geographic Magazine</image:caption>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/understanding-the-properties-of-operations</loc>
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    <lastmod>2024-09-28</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/8e41cd96-e00b-4b50-a7d8-3f14b2e3a829/DLS-PreAl-DistributiveProperty.png</image:loc>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/graphing-quadratics-vertex-form</loc>
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    <priority>0.5</priority>
    <lastmod>2026-07-16</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/fea66a1e-2d69-4ecf-ab12-d6c456ba2c9f/1GQ-parentfunction.png</image:loc>
      <image:title>Browse our Entire Collection - How to Graph Quadratics in Vertex Form: Step-by-Step with Examples - Make it stand out</image:title>
      <image:caption>Image Description: A graph of the parent function of a quadratic, f(x) = x².</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/c0d4711a-e570-4db2-8f1f-9141ef53074b/alg-quad-parentfunction.jpg</image:loc>
      <image:title>Browse our Entire Collection - How to Graph Quadratics in Vertex Form: Step-by-Step with Examples - Make it stand out</image:title>
      <image:caption>Image Description: A graph of the parent function of a quadratic, f(x) = x². A line of symmetry is shown at x=0, and the vertex is shown at the coordinate (0,0).</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/2257cfae-29b0-4fc5-a862-c516e835803d/alg-Transformationa.png</image:loc>
      <image:title>Browse our Entire Collection - How to Graph Quadratics in Vertex Form: Step-by-Step with Examples - Make it stand out</image:title>
      <image:caption>Image Description: Three graphs are shown with changes to the “a” or scale factor. The first graph on the left shows the parent function, f(x)=x² and a graph with a vertical stretch, f(x)=2x². The second graph shows the parent function, f(x)=x² and a graph with a vertical compression, f(x)=1/2 x². The third graph shows the parent function, f(x)=x² and a graph with a reflection across the x-axis, f(x)=-x².</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/91540672-6675-4705-8d80-3b904296f239/alg-transformationh.png</image:loc>
      <image:title>Browse our Entire Collection - How to Graph Quadratics in Vertex Form: Step-by-Step with Examples - Make it stand out</image:title>
      <image:caption>Image Description: Two graphs are shown with changes to the “h” or horizontal shift. The first graph on the left shows the parent function, f(x)=x² and a graph with a shift to the right, f(x)=(x-2)². The second graph shows the parent function, f(x)=x² and a graph with a shift to the left, f(x)=(x+2)².</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/7df576f3-180c-4b6c-bc83-e8ba0b129929/alg-transformationk.png</image:loc>
      <image:title>Browse our Entire Collection - How to Graph Quadratics in Vertex Form: Step-by-Step with Examples - Make it stand out</image:title>
      <image:caption>Image Description: Two graphs are shown with changes to the “k” or vertical shift. The first graph on the left shows the parent function, f(x)=x² and a graph with a shift upward, f(x)=x²+3. The second graph shows the parent function, f(x)=x² and a graph with a shift downward, f(x)=x² -3.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/b84bea20-7b50-46c2-a8cf-1b4932e5c3d8/alg-graphingquad-example.png</image:loc>
      <image:title>Browse our Entire Collection - How to Graph Quadratics in Vertex Form: Step-by-Step with Examples - Make it stand out</image:title>
      <image:caption>Image Description: A step-by-step guide graphing the function, f(x)=-(x+3)² -1. On the graph the line of symmetry is identified at x=-3. The Vertex is shown at (-3,-1). Four additional points are shown at the following coordinates: (-5, -5) ; (-4, -2) ; (-2, -2) ; and (-1, -5).</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/317ab227-77da-4cd2-b06a-e95ca96f665c/Alg+Graphquad+Answers+Revised.png</image:loc>
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      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/the-cell-cycle-checkpoints-and-cancer</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-16</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/655eed5d-89ab-47d4-a565-fb9bf3854ab8/CC-CheckpointsOverview.png</image:loc>
      <image:title>Browse our Entire Collection - The Cell Cycle: Checkpoints and Cancer - Make it stand out</image:title>
      <image:caption>Alt Text: A diagram illustrating the cell cycle checkpoints. The phases of the cell cycle are represented in a circle starting at G1, S, G2, and a smaller shaded region for mitosis. There is a yellow and black X at the G1/S boundary for the G1 checkpoint. A yellow X at the G2/Mitosis boundary for the G2 checkpoint and another yellow X in the mitosis region for the Metaphase Checkpoint.</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/83142216-d129-4608-8a04-f783b7c36274/CC-MCheckpoint2.png</image:loc>
      <image:title>Browse our Entire Collection - The Cell Cycle: Checkpoints and Cancer - Make it stand out</image:title>
      <image:caption>Alt Text: A diagram illustrating the mitosis checkpoint. There is a cell with two chromosomes in the middle and spindles as dotted lines, connecting to the chromosomes and either sides of the cell. Each chromosome has an orange dot to represent the kinetochores. There is a box to the right of the diagram explaining that correct attachment to kinetochores allows the cell to properly divide the chromosomes.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/b6feadf2-afc5-422b-aa75-220071344236/CC-CheckpointsDetailed.png</image:loc>
      <image:title>Browse our Entire Collection - The Cell Cycle: Checkpoints and Cancer - Make it stand out</image:title>
      <image:caption>Alt Text: A diagram illustrating the cell cycle checkpoints. The phases of the cell cycle are represented in a circle starting at G1, S, G2, and a smaller shaded region for mitosis. There is a yellow and black X at the G1/S boundary for the G1 checkpoint. A yellow X at the G2/Mitosis boundary for the G2 checkpoint and another yellow X in the mitosis region for the Metaphase Checkpoint. A box is shown on the right side of the diagram with checkpoint requirements.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/344e51a7-d21a-45f4-b0a1-9e6ad17e5cd7/CC-MPF.png</image:loc>
      <image:title>Browse our Entire Collection - The Cell Cycle: Checkpoints and Cancer - Make it stand out</image:title>
      <image:caption>Alt Text: A diagram illustrating the role of Mitosis Promoting Factors (MPF) in the cell cycle. The image shows that Cyclin binds to cyclin-dependent kinase (Cdk) to form the MPF complex. This MPF complex then activates through phosphorylation, initiating cell division by phosphorylating target proteins. Cyclin degrades during M phase, leading to the inactivation of MPF, and its concentration rebuilds as the cell cycle progresses. The cycle of activation and degradation repeats as Cyclin levels fluctuate throughout the cell cycle.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/2d86f572-5b6a-4d7d-90f8-83bd4f39997d/CC-MPFconc.png</image:loc>
      <image:title>Browse our Entire Collection - The Cell Cycle: Checkpoints and Cancer - Make it stand out</image:title>
      <image:caption>Alt Text: A simple graph illustrating Cyclin concentrations in the cell cycle. At the top of the graph the cell cycle is represented as G1, S, G2, and mitosis. A yellow horizontal line is shown below to represent cdk with text that reads “concentrations remain consistent, but cdk is not always active. A green line representing cyclin concentration is low during G1, and starts to increase in S, peaking in mitosis and then dropping back down to the low concentrations. Two cell cycles are shown.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/solving-a-function-for-a-variable</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2024-09-26</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/2984777b-1967-4ec8-9293-10b2f651f281/alg-solvefunc1-practice.png</image:loc>
      <image:title>Browse our Entire Collection - Solving a Function for a Variable - Make it stand out</image:title>
      <image:caption>Two graphs showing the function f(x) = 4x + 7. The first graph shows the linear function plotted on a coordinate plane. The second graph highlights solving the function for f(x) = 55, showing the intersection point where x = 12. A brown dashed line from y = 55 intersects the function at the point (12, 55).</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/7a9dd052-383f-45ca-a43a-b2e2a60b6d3e/alg-solvefunc2-practice.png</image:loc>
      <image:title>Browse our Entire Collection - Solving a Function for a Variable - Make it stand out</image:title>
      <image:caption>Two graphs displaying the function f(x) = (x + 3)(x - 1)(x - 5). The first graph shows the full curve of the function on a coordinate plane. The second graph highlights the points where the function equals zero, with brown markers at x = -3, x = 1, and x = 5. A note below indicates these x-values when f(x) = 0.</image:caption>
    </image:image>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/38b5e874-acb2-4e21-8481-e6db015286a1/alg-solvefunc3-practice.png</image:loc>
      <image:title>Browse our Entire Collection - Solving a Function for a Variable - Make it stand out</image:title>
      <image:caption>Two tables showing x and y values. The first table lists pairs: (0, 7), (1, 11), (2, 15), and (3, 19). An arrow points to the second table, where the pair (2, 15) is circled, indicating that when f(x) = 15, x = 2.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/01fa63ed-ef2b-41a0-9977-1724c5a6a481/alg-solvefunc4-practice.png</image:loc>
      <image:title>Browse our Entire Collection - Solving a Function for a Variable - Make it stand out</image:title>
      <image:caption>Two tables showing x and y values. The first table lists pairs: (-2,21), (-1,24), (0,15), and (1,0). An arrow points to the second table, where the pair (1,0) is circled, indicating that when f(x) = 0, x = 1.</image:caption>
    </image:image>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/ff7da310-c01d-4f83-accd-8dd3fcba776b/alg-solvefunc5-practice.png</image:loc>
      <image:title>Browse our Entire Collection - Solving a Function for a Variable - Make it stand out</image:title>
      <image:caption>Three problems labeled A-C with directions stating to solve for the value of x, when given the f(x). Problem A reads, If f(x)=(-1/2)x-1 and f(x)=9, B reads if f(x)=-4 and gives the graph f(x) = -absval(x-3)+7, and C reads f(x)=6 and a table with the coordinates (-2,2), (0,4), (2,6), and (4,6).</image:caption>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/decoding-the-cell-cycle</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2025-07-24</lastmod>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/evaluating-functions-2</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2025-07-24</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/85c998f0-42d3-4a3a-9887-e002b4a0fd5e/blog-alg-evalfuncb1-longpin.jpg</image:loc>
      <image:title>Browse our Entire Collection - Evaluating Functions - When Input Is an Expression - Make it stand out</image:title>
      <image:caption>The text reads, “Evaluate the following function.” Underneath it reads “A. Given f(x)=4x+5, find f(x+2).” Below, the problem is solved. “x+2” replaces “x.” Problem now reads “=4(x+2)+5”, then “4x+8+5”, then 4x+13. Finally, in a shaded box, the answer says “f(x+2)=4x+13.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/d32c15b7-5e68-4e77-91f4-d10c5e997d07/blog-alg-evalfuncb2-longpin.jpg</image:loc>
      <image:title>Browse our Entire Collection - Evaluating Functions - When Input Is an Expression - Make it stand out</image:title>
      <image:caption>The text reads, “Evaluate the following function.” Underneath it reads “B. Given g(h)=-h^2+3h+1, find f(h^2).” Below, the problem is solved. “h^2” replaces “x.” Problem now reads “=-(h^2)^2+3(h^2)+1”, then “-h^4+3h^2+1”. Finally, in a shaded box, the answer says “f(h^2)=-h^4+3h^2+1.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/a10781b8-f29c-48f5-991d-a95505e4f6c0/blog-alg-evalfuncb3-longpin.jpg</image:loc>
      <image:title>Browse our Entire Collection - Evaluating Functions - When Input Is an Expression - Make it stand out</image:title>
      <image:caption>The text reads, “Evaluate the following function.” Underneath it reads “C. Given f(t)=5t-7, find f(3t).” Below, the problem is solved. “3t” replaces “t.” Problem now reads “=5(3t)-7”, then “15t-7”. Finally, in a shaded box, the answer says “f(3t)=15t-7”.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/5a3be112-d9f7-4a07-a481-4c20eff06577/alg-evalfuncb2-practice.jpg</image:loc>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/evaluating-functions-1</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-16</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/601158a2-27b2-4efe-83f0-3e7ef9d142e5/alg-evalfunc-alg1.png</image:loc>
      <image:title>Browse our Entire Collection - Introduction to Evaluating Functions - Make it stand out</image:title>
      <image:caption>The title reads “Evaluating Functions Algebraically.” Two examples are given. On the left side reads “evaluate f(x)=x^2-3 when x=4.” 4 is substituted into the place of x, and the answer is f(x)=13 when x=4. The right side reads “If f(x)=x^2-3, find f(-2).” -2 is substituted and answer is f(-2)=1.</image:caption>
    </image:image>
    <image:image>
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      <image:title>Browse our Entire Collection - Introduction to Evaluating Functions - Make it stand out</image:title>
      <image:caption>The title reads “Evaluating Functions Graphically.” Two problems are given. The first reads, “evaluate when x=4.” The graph of y=x^2-3 is given, and a dot on (4,13) is highlighted. The second problem reads “find f(-2).” The same graph is shown again, and a dot on (-2,1) is highlighted.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/93c0942f-7925-4063-875b-1611ba513b7e/alg-evalfunc-alg3.png</image:loc>
      <image:title>Browse our Entire Collection - Introduction to Evaluating Functions - Make it stand out</image:title>
      <image:caption>The title reads “Evaluate a Function Using a Table.” Two problems are given. The first problem reads, “Evaluate when x=4.” Six coordinate pairs are given, and the x-value of 4 is highlighted. The y-value is 13. The second problem reads “find f(-2).” The same coordinate pairs are given but this time x-value of -2 is highlighted. The y-value is 1.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1b54ef48-7ac1-4890-ae84-6a8b19f30fb8/alg-evalfunc-practice.png</image:loc>
      <image:title>Browse our Entire Collection - Introduction to Evaluating Functions - Make it stand out</image:title>
      <image:caption>The title reads “Practice Time!” and three problems are given. Problem A reads “If f(x)=x^2+2x+6, find f(-1).” Problem B reads, “Evaluate when x=0,” and a graph for the function y=-abs(x-2) + 4 is given. Problem C reads “find f(-3),” and a table is given. The coordinates of the table are {(-3,0.125), (-2,0.25), (-1,0.5), (0,1), (1,2), (2,4)}.</image:caption>
    </image:image>
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    <loc>https://www.deltalearningspace.com/blog-collection/introduction-to-relations-and-functions</loc>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/6-math-websites-and-apps-to-help-solve-math-problems</loc>
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    <lastmod>2024-09-02</lastmod>
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      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Mathway1</image:title>
      <image:caption>Keyboard options available on Mathway App.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1721626918158-LGUP5D9HNC5YHHRBMQCF/Mathway2.jpg</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Mathway2</image:title>
      <image:caption>An example problem with a drop-down menu of how to solve</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1721626919384-S2UFXSCSWE1UQYW06ILK/Mathway1.jpg</image:loc>
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      <image:caption>An example problem with answer showing the step-by-step.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1638328778716-1KPK3XC0J94FDXBS9S4D/MICROSOFTMATH-1.png</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Screenshot of Microsoft Math interface</image:title>
      <image:caption>This image shows how a problem can be entered into Microsoft Math and how the solved problem is shown.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1638328778744-JOGTXB2VVTQBIQ3JDBBF/MICROSOFTMATH-2.png</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Screenshot of Microsoft Math Graph</image:title>
      <image:caption>This image shows a graph of the previous linear equation. This appears on the same page as the answer.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1638328779395-PVEMKVSGJ56MQXO5JN7K/MICROSOFTMATH-3.png</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Screenshot of Microsoft Math Additional Resources</image:title>
      <image:caption>This image shows the additional resources and how those resources appear on Microsoft Math. This can be found on the same page as the previous two screenshots.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/d273a173-5918-4178-aeed-1c9acc47c89f/DESMOS-1.png</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Make it stand out</image:title>
      <image:caption>Screenshot of Desmos on a desktop. Image shows two equations of the left side and their corresponding graphs in the window on the right-hand side.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/3f9871e7-5149-4fc0-8cf4-55da190694c1/PHOTOMATH-1.PNG</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Make it stand out</image:title>
      <image:caption>Screenshot of Photomath Plus App. This image shows a few textbook answers that Photomath Plus has available for users.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/656d1941-bd30-439a-b552-8e5e3e2c5f53/PHOTOMATH-2.jpg</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems - Make it stand out</image:title>
      <image:caption>Screenshot of the Photomath App that shows the answer to inputted calculus problem.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/1721627555988-7QFJKU9CQX5X2ZGKHV4X/calc1.jpg</image:loc>
      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems</image:title>
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      <image:title>Browse our Entire Collection - 6 Websites &amp;amp; Apps to Help Solve Math Problems</image:title>
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  <url>
    <loc>https://www.deltalearningspace.com/blog-collection/student-guide-number-properties-multiply-divide-integers</loc>
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    <loc>https://www.deltalearningspace.com/blog-collection/student-guide-number-properties-add-subract-integers</loc>
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    <lastmod>2026-07-16</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/01a9989b-6612-40e7-b4df-c1acc1a04a18/DLS-GM-OperationsIntegers.png</image:loc>
      <image:title>Browse our Entire Collection - Add and Subtract Positive and Negative Integers - Make it stand out</image:title>
      <image:caption>Join our Member Library to download a free Integer Practice!</image:caption>
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      <image:title>Browse our Entire Collection - Add and Subtract Positive and Negative Integers</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/cf2c0641-017a-4a2c-9daa-0d0cda8c0186/np-numberline2.png</image:loc>
      <image:title>Browse our Entire Collection - Add and Subtract Positive and Negative Integers</image:title>
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      <image:title>Browse our Entire Collection - Add and Subtract Positive and Negative Integers - Make it stand out</image:title>
      <image:caption>Examples 3 and 4</image:caption>
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      <image:title>Browse our Entire Collection - Add and Subtract Positive and Negative Integers - Make it stand out</image:title>
      <image:caption>Examples 5 and 6</image:caption>
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      <image:title>Browse our Entire Collection - Add and Subtract Positive and Negative Integers - Make it stand out</image:title>
      <image:caption>Examples 7 and 8</image:caption>
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    <loc>https://www.deltalearningspace.com/blog-collection/number-properties-rules-of-divisibility</loc>
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    <lastmod>2026-07-16</lastmod>
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    <lastmod>2025-07-24</lastmod>
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      <image:title>Browse our Entire Collection - Multiples and Least Common Multiples</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/f5566e90-f250-43b1-a7f2-09f0f79985a3/np-multiples-method2.png</image:loc>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/41122583-4e20-483f-9edf-acef732a6321/np-multiples-method3-1new.png</image:loc>
      <image:title>Browse our Entire Collection - Multiples and Least Common Multiples - Since these numbers do not share any factors, we multiply all their prime factors to get the least common multiple.</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5ffd1e2c3ff3ea0604bcc54d/ab92dcd6-b25c-4614-8f6b-cadcd82e8232/np-multiples-method3-2new.png</image:loc>
      <image:title>Browse our Entire Collection - Multiples and Least Common Multiples - Since we have a shared factor, we only need to multiply the shared factor once.</image:title>
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    <lastmod>2026-01-21</lastmod>
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      <image:title>Browse our Entire Collection - Factors and Prime Factors - Factor table for the number 24</image:title>
      <image:caption>Factors can be found by finding factor pairs whose products will result in 24. (i.e. 1*24 = 24)</image:caption>
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      <image:title>Browse our Entire Collection - Factors and Prime Factors - Prime Factor Tree for the number 24</image:title>
      <image:caption>Using a factor pair, factor until only prime numbers remain. All the prime factors in the example are circled.</image:caption>
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