CPM Homework Help : PCT Problem 1-86

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

Step 1:

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

Step 2:

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

Step 3:

Solve for $y$ .