SOLUTION: Please give an answer of following to Given f(x)= 3x-2, find f^(-1) (4) thank you.

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Question 178653: Please give an answer of following to
Given f(x)= 3x-2, find f^(-1) (4)
thank you.
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
if your talking about the inverse of f(x) ..then what we have to do is replace all occurences of y with x and all occurences of x with y.
:
let y=f(x) so y=3x-2 f%5E-1%28x%29 is x=3y-2--->3y=x+2--->y=(1/3)x+(2/3)
:
so f%5E-1(4) =(1/3)(4)+2/3=4/3+2/3=6/3=highlight%282%29