Question

If f(x) = (x + 5), find the inverse of f.

Answer 1

`f^(-1)(x)=x-5`

1) As we want to find the inverse function, we need to follow some steps. The first one is to swap the variables like this:

`\begin{gathered} y=x+5 \\ \\ x=y+5 \\ \\ y+5=x \\ \\ y+5-5=x-5 \\ \\ y=x-5 \\ \\ f^(-1)(x)=x-5 \end{gathered}`

That is the answer.