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1/8 Quadratic Formula Calculator

In the sketch below, drag sliders a, b and c to change the quadratic equation.

Quadratic Formula

1. What information do you need from a quadratic equation to use the quadratic formula?

2. Solving the quadratic formula

Once you solve the quadratic formula, what have you found?

Use this app to help you solve a quadratic equation on IXL

3. How could this help?