Graphing Quadratics: Free Interactive Tool for Vertex & Standard Form
Graphing a quadratic shouldn't feel like guessing where the parabola goes. This tool turns it into a series of decisions you can see: change something, and the graph changes with you.
There are three ways in, and you can start with any of them.
Match the curve. A target parabola appears and you rebuild it. Only one control unlocks at a time, so you find out what a, h, and k each do on their own before they start working together.
Your move. You decide what to hunt for — the vertex, the line of symmetry, the scale factor, a point of your choosing. The tool keeps track of how many parabolas still fit what you know, and shows you the ones you haven't ruled out yet. When only one is left, you've got it.
Work it through. Take a problem from start to finish in vertex form, or in standard form using the vertex formula or completing the square. Every answer gets checked, and when something's wrong the tool tells you what went wrong, not just that it did.
There's also a Forms & Vocabulary tab for when you're stuck on a word, want the three forms side by side, or want to see why completing the square is called that.
Free, no sign-up, nothing saved. It runs in a browser on a Chromebook, a phone, or a projector at the front of the room.
Graphing Quadratic Functions
Work through a parabola one decision at a time. Find the vertex, set the direction, build a table, and watch the curve appear as you go.
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Keep Going
Read the walkthrough. Both posts cover the same methods this tool uses, with worked examples you can follow at your own pace.
Practice on paper. Printable notes and problem sets for the same material, with answer keys.
Working through this with a student who needs more than a worksheet? One-on-one tutoring is available in biology, chemistry, physics, and math, including Digital SAT prep.
Using This With a Class
The tool needs no accounts and stores nothing, so it works on a Chromebook cart or projected for a whole class. Nothing is recorded, which also means nothing to collect; pair it with the guided notes.
Match the curve works well as a five-minute opener before a lesson on transformations. Your move suits a partner activity, since it gives students something to argue about: what do you actually need to know before you can draw a parabola? The step-by-step tracks cover vertex form, the vertex formula, and completing the square, so you can point students at whichever method your curriculum uses.
Help Us Keep Learning Accessible!
At Delta Learning Space, we believe that high-quality educational resources should be accessible to everyone. We work hard to keep our resources free or affordable for teachers, students, and families.
We created the Graphing Quadratic Builder with that mission in mind, to give students a hands-on way to explore algebra concepts without adding another cost.
If you’ve found this tool helpful and would like to support our work, your donation helps us maintain this tool and continue creating new, high-quality educational resources. Every contribution, big or small, helps us keep building and sharing resources that make learning more accessible.
Thank you for supporting Delta Learning Space and our mission to make learning more accessible!