If ƒ (x) = 4x - 3, what is ƒ (x) - 1?

F (x) ^-1 is asking for the inverse function of f (x).

The first step to finding the inverse is:

1) change f (x) to y

2) switch x and y

3) resolve the equation for y =

f (x) = 4x - 3

y = 4x - 3

x = 4y - 3

add 3 to both sides

x + 3 = 4y

divide both sides by 4

(x + 3) / 4 = y

y = (x + 3) / 4