Question

How do you find the inverse of `f(x)=5 x-2`?

Answer 1

`f^-1(x)=(-2-x)/5`

Explanation:

Let `f(x)` be `y`.

`y=5x-2`

Make `x` your subject.

`5x=-2-y`
`x=(-2-y)/5`

Replace `y` with `x` to get your final answer.

`f^-1(x)=(-2-x)/5`