SOLUTION: If f(x) = 3x – 7, determine f^-1(x) and write your answer as a single fraction

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Question 257232: If f(x) = 3x – 7, determine f^-1(x) and write your answer as a single fraction
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
We start with
f%28x%29+=+3x+%96+7
step 1 - reverse x and y to get
(ii) x+=+3y+-+7
add 7 to get
(iii) x%2B7+=+3y
divide by 3
(Iv) y%5E-1+=+%281%2F3%29x+%2B+%287%2F3%29