Question

If f(x) = 3x2 - 6, find f(-1) .
f(-1)=

Answer 1

Answer: f(-1)= -3

Explanation:

Plug -1 into x follow pemdas so do your exponent and parentheses. (-1)^2 which is 1. Then multiply by 3 and subtract by 6 so final answer is -3.

Answer 2

Explanation:

f(-1)=3*-1^2-6

=3*1-6

=3-6

=-3