inverse

Quote:

what is the inverse of f(x) = 3x - 1/4

to solve these what you do is set y = f(x) and then solve for x in terms of y.

y = 3x - 1/4

y+1/4 = 3x

x = (y+1/4)/3

now replace the x with f ^-1 and y with x

f ^-1 = (x+1/4)/3