Which are true about the function f(x)=−2x^2+4x+9 ? Select all that apply.

Question

A. The graph has a minimum at (1,7).

B. The graph has a maximum at (1,7).

C. The graph has a maximum at (1,11).

D. The graph has a y-intercept at (0,9).

E. The graph has a y-intercept at (0,-9).

F. The function in vertex form is f(x)=−2(x−1)^2+7
.

G. The function in vertex form is f(x)=−2(x−1)^2+11
.

Answer 1

A. The graph has a minimum at (1,7).
D. The graph has a y-intercept at (0,9).
F. The function in vertex form is f(x)=−2(x−1)^2+7.