Question

Given f(x) = 3x - 40. If f(x)= 8, what is the value of x?

A. - 96
B. -16
C. 16
D. -32/3
E. 32/3

Answer 1

C

Explanation:

Given

f(x) = 3x - 40 and f(x) = 8 , then equate the right sides, that is

3x - 40 = 8 ( add 40 to both sides )

3x = 48 ( divide both sides by 3 )

x = 16 → C