Question

I need help really bad

Answer 1

see explanation

Explanation:

If f(x) and
`f^(-1)` are inverse functions, then

f(
`f^(-1)`)(x) = x

Thus substitute x =
`f^(-1)` (x) into f(x)

f(
`(x+6)/(5)` )

= 5 (
`(x+6)/(5)` ) - 6

= x + 6 - 6

= x

Thus f(x) and
`f^(-1)` (x) are inverse functions