# Quadratic Roots

Use the applet below to see the x-values of the intersections of the circle and the line. Compare with the x-values of the roots of f(x).

Move p (the coefficient on x in f(x)) and see how it effects the circle.
Move q (the constant of f(x)) and see how it moves the line.
Click the checkbox on f(x) to see the quadradic and its roots.

## New Resources

Download our apps here: