A) \[~\frac{x}{3}-4~\]
B) \[\frac{x+4}{3}\]
C) \[3x+4\]
D) None of these
Correct Answer: B
Solution :
[b] \[\because f\left( x \right)=3x-4\] \[y=3x-4\] \[3x=y+4\] \[x=\frac{y+4}{3}x={{f}^{-1}}(y)={{f}^{-1}}(x)=\frac{x+4}{3}\] Hence, option [b] is correct.You need to login to perform this action.
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