Question

What is the inverse function of `f(x) = 4x + 2`?

Answer 1

The inverse function is `y=(x-2)/4`.

Explanation:

First, lets rewrite the equation like this:

`y=4x+2`

In order to find the inverse of an equation, the easiest thing to do is to switch `x` and `y` and then isolate `y`:

`x=4y+2`

`4y=x-2`

`y=(x-2)/4`