### Home > PC > Chapter 1 > Lesson 1.2.2 > Problem1-86

1-86.

Find $f^{−1}(x)$if $f(x)=\frac{5}{2}x−3$ .

Change$f\left(x\right)$ to $y$.

Switch all of the $x$'s to $y$'s and all of the $y$'s to $x$'s.

Solve for $y$.