Answer:
Step-by-step explanation:
The simplest way to find an inverse function is to reverse the order of x and y and solve for y.
y=-3x/4+15 reverse variables
-3y/4+15=x subtract 15 from both sides
-3y/4=x-15 multiply both sides by 4
-3y=4x-60 divide both sides by -3
y=(60-4x)/3
