what function has a y-intercept of (0,4)?

Question

A. f(x)=2(x+2)(x-1) B.f(x)=(x-1)2 -2 C.f(x)= (x-1)(x+3) D. f(x)=-(x+3)2 E. f(x)=-2x2-8x+3 F. f(x)=1/2x2-2

Answer 1

Put x = 0 in each function and evaluate f(0). The function that has f(0) = 4 is the answer. None of the functions seem to have a y-intercept of 4. Answers A and B have y-intercepts of -4.