Question

Given the function f(x) = 3(x – 5) + 8, which of the following represents f–1(x)?

Answer 1

Explanation:

f(x) = 3(x - 5) + 8

f-1(x) = -1(3(x - 5) + 8)

= -3(x - 5) - 8

= -3x + 15 -8

= -3x + 7