Question

Which of the following functions has a maximum at x=3?
SELECT ALL THAT APPLY.

A. f(x)= (x-3)^2

B. f(x)= (x-2)(4-x)

C. f(x)= -x^2+6x-5

D. f(x)=1-(x-3)^2

E. f(x)= (x+3)^2-9

F. f(x)= x^2-4x+3

Answer 1

Selections B, C, D apply.