Question

1. f(x) = 8 + 11x, Find f-1 (-47)
(Finding inverse functions given an input)

Answer 1

f^-1(-47) = -5

Explanation:

You want to find the value of x that gives f(x) = -47.

-47 = 8 + 11x

-55 = 11x

-5 = x

Then f^-1(-47) = -5.