If `f:RtoR` is given by `f(x)=3x-5` then `f^-1(x)`A. is given by `(1)/ – InterviewSolution

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1.	If `f:RtoR` is given by `f(x)=3x-5` then `f^-1(x)`A. is given by `(1)/(3x-5)`B. is given by `(x+5)/(3)`C. does not exist because f is not one-oneD. doses not exist because f is not onto
Answer» Correct Answer - B Given, `f(x)=3x-5 " " ` [given] Let `y=f(x)=3x-5 rArr y+5=3x` `rArr x=(y+5)/(3)` `f^(-1)(y)=(y+5)/(3)` `rArr f^(-1)(x)=(x+5)/(3)`

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