### Home > A2C > Chapter 9 > Lesson 9.2.1 > Problem9-79

9-79.

Find the inverse functions below.

1. If $f\left(x\right) = 2x − 3$, then what does $f ^{−1}(x)$ equal?

$x = 2f ^{−1}\left(x\right) − 3$
Solve for $f ^{−1}\left(x\right)$.

$f^{-1}(x)=\frac{{x+3}}{2}$

2. If h(x) = (x − 3)2 + 2, then what does h1(x) equal?

See part (a).

$h^{-1}(x)=\sqrt{x-2}+3$