[tex] f(x)=145+12.5x [/tex]
y=145+12.5x
Step 1: Swap x and y
So, x=145+12.5y
Step 2: Solve for y
So, subtracting 145 from both sides
x-145=12.5y
Divide by 12.5 from both sides
[tex] y=\frac{x-145}{12.5} [/tex]
[tex] f^{-1} (x)=\frac{x-145}{12.5} [/tex]
