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26 votes
26 votes
Given f(x) = ax – b, what is f-1(x)

User Cantuket
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2 Answers

17 votes
17 votes

x + b/a Replace f(x) with y, interchange x and y and solve for y.

User Dilshan Liyanage
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22 votes
22 votes
The correct answer is x+b/a

f^{-1}(x)=\frac{x+b}{a}
User Mauro Midolo
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