(A) method A to find the inverse of a function, we do the two following steps: 1. exchange x and y (or f^(-1)) 2. Solve for y in terms of x. For the given problem, y=3x-4 step 1: exchange x and y: x=3y-4 step 2: solve for y: x=3y-4 => 3y=x+4 => y=(x+4)/3 => f^(-1)=(x+4)/3