Question

Given the function f(x) = 3x2 − 4, what is f(-2)?

Answer 1

possible answers

A. -40
B. -16
C. 8
D. 32

Answer 2

Just substitute in the x,
\[ f(x) = 3x^2 − 4\]
\[ f(-2) = 3(-2)^2 − 4\]
\[f(-2)=?\]

Answer 3

8 :)