Question

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Answer 1

Answer:

$f^{-1}(7)=2$

Step-by-step explanation:

$f^{-1}(7)$ means substitute x = 7 into the inverse function $f^{-1}$

$\implies f^{-1}(7)=\frac{7-1}{3} =2$

Answer 2

Answer:

The answer should be C