Question

Which equation when graph has x intercepts at (2,0) and (4,0) and a y-intercept of (0,-16)?

A. F(x)= -(x-2)(x-4)
B. F(x)= -(x+2)(x+4)
C. F(x)=-2(x-2)(x-4)
D. F(x)= -2(x+2)(x+4)

Answer 1

x intercepts are when y=0, so the intercepts are the zeroes. That gives us the possible answers A and C, but only C makes the y intercept (when x=0) = -16, so C is the answer.