Ap math
this problem has 2 parts. i have answered the first part but need in the

1. find the discriminate of y=x^2 -6x-9
72
**2. what does this tell you about y=x^2 -6x-9**

The discriminant for a quadratic polynomial gives you information about the polynomial's roots.

Given , the discriminant is given by .

There are three possible conclusions you can draw. If , then the quadratic has two distinct real roots. If , then there is one repeated real root. If , then there are two complex (non-real) roots.

Since you found , that means that has two distinct real roots.