Question

Given f(x) = 9x – 9, find the value below.(f•f^-1)(-9)

Answer 1

Given a function:

`f(x)=9x-9`

We have to find the value of:

`(f\circ f^(-1))(-9)`

It is known that if f is an invertible function, then

`(f\circ f^(-1))(x)=x_{}`

So, here:

`(f\circ f^(-1))(-9)=-9`

Thus, the answer is -9.