Question

Given f(x) = 3x -1, how do you find f(x-1) - f(2)?

Answer 1

`f(x-1)-f(2)=3x-9`

Explanation:

As `f(x)=3x-1`

`f(x-1)=3(x-1)-1=3x-3-1=3x-4`

and `f(2)=3xx2-1=6-1=5`

Hence `f(x-1)-f(2)=3x-4-5=3x-9`