# How do you find the vertex and intercepts for # f(x)=-5x^2+3x+8#?

##### 1 Answer

Nov 17, 2015

Find vertex and intercepts of

#### Explanation:

x-coordinate of vertex:

y-coordinate of vertex:

To find y-intercept, make x = 0 --> y = 8

To find x-intercepts, make y = 0. Solve the quadratic equation:

Since a - b + c = 0, use shortcut: the 2 real roots are: