Question

How do you find the inverse of each function `y=x^2-12`?

Answer 1

`y=sqrt(x +12)`

Explanation:

Swap the `x` and `y` so `y=x^2-12` becomes `x=y^2-12`
Then rearrange so `y` is the subject.

`x+12=y^2`

So `y=sqrt(x +12)`