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P.nut1996 If f(x)=(x+2/2) then what is f^-1(x) one year ago one year ago

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1. ltinson

x^2/x+1

2. P.nut1996

$f(x)=\frac{ x+2 }{ 2 } what is f ^{-1}(x)$

3. P.nut1996

$A. \frac{ 1 }{ 2 }x+1$

4. P.nut1996

$B. 2x+1$

5. P.nut1996

$C. 2x-2$

6. P.nut1996

$D. 2x+2$

7. ritez

put y = (x + 2)/2 now try to get x in terms of y , replace it with x and that is f ^-1 x

8. P.nut1996

Thanks! :)

9. ritez

yw :)