Question

Given; f(x)=9x+5, find f^-1(x) then state whether f^-1(x) is a function.

Answer 1

(1/9)x-5/9=y

Explanation:

Y=9x+5

You first swap/interchange x and y

x=9y+5

Then solve for y

x/9-5/9=9y/9

Final answer:(1/9)x-5/9=y