Question

Given the function f(x) = 2(x + 8), find x if f(x) = 12.

Select one:
a. 2
b. 40
c. −2
d. 14

Answer 1

C.) -2

Explanation:

solve by putting 12 in for f(x)

12 = 2(x + 8)

Divide by 2

6 = x + 8

Subtract 8

-2 = x