## anonymous 5 years ago find an equation for the inverse of the function: f(x)=x^2+5;x>0

1. anonymous

$f^{-1}(x) = \sqrt{x-5}\ [x\ \in \mathbb{R}\ ; \ x >5]$ But why?

2. anonymous

thats all it says to do

3. anonymous

No, I meant, can you explain why?

4. anonymous

why what?