Question

20 if f(x) = 4x + 5, what is the value of f(-3)?
A-2
B-7
C 17
04

Answer 1

B. -7

Explanation:

f(x) = 4x + 5

To find the value of f(-3), replace all the x's in f(x) with -3.

f(x) = 4x + 5

f(-3) = 4(-3) + 5

f(-3) = -12 + 5

f(-3) = -7.

This makes your answer B, -7.