College Algebra · Module 7 · Quadratic functions and equations

Quadratics Walkthrough

Watch parabolas draw themselves, slide into vertex form and cross the x-axis at their roots. Solve quadratics four ways, from factoring to the quadratic formula, and use the vertex to find the highest, biggest and best. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · College Algebra Study Tools · CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Quadratics Lab. On every graph the parabola is purple, the vertex orange, the axis of symmetry a dashed gold line, x-intercepts teal and the y-intercept green. Algebra tiles: blue squares are x², green bars are x and small yellow squares are 1. Fractions are written stacked, one number over another. Animations loop so you can watch them as many times as you like.