Operation
Add 5 = Subtract 5
Multiply by 3 = Divide by 3
Subtract 7 = Add 7
Divide by -2 = Multiply by =2
Cube it = cube root it
Take a square root = square it
f says subtract 5, then divide by 3
f⁻¹ says multiply by 3, add 5
f⁻¹(x) = 3x+5
f says add 4, then cube root it
f⁻¹ says cube it, subtract 4
f⁻¹(x) = x³-4
