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