Question

Let f(x) = x2 - 3x - 7. Find f(-3).

11

8

-7

-10

Answer 1

f(x) = x^2 -3x - 7
f(3) = 3^2 - 3(3) - 7 = ...
f(3) simply means everywhere you see x, replace it with 3
t's f(-3), not f(3)
f(-3) = -3^2 -3(-3) - 7
= 9 + 9 - 7 = 11 \

is c