What are the x-intercepts for the graph of the quadratic function f(x)=1/4(x +2)^2-9
for x-intercept, let y or f(x) = 0
(1/4)(x+2)^2 - 9 = 0
(1/4)(x+2)^2 = 9
(x+2)^2 = 36
x+2 = ± 6
x = -2 ± 6
x = -8 or x = 4
(1/4)(x+2)^2 - 9 = 0
(1/4)(x+2)^2 = 9
(x+2)^2 = 36
x+2 = ± 6
x = -2 ± 6
x = -8 or x = 4