Question

If f(x) = 5x, what is f-1(x)?

Answer 1

`y = (x)/(5)`

Explanation:

I am going to assume that by "f-1(x)" you mean
`f(x)^(-1)`, which makes this an inverse function problem. To find the inverse of a function, simply swap x and y, then solve for y.

`x = 5y\\y = (x)/(5)`