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If f(x) and f^-1(x) are inverse functions of eachother and f(x)=2x+5, what is f^-1(8)

User Panos Boc
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Answer:

1.5

Explanation:

The value of x such that f(x) = 8 is ...

8 = 2x +5

3 = 2x

1.5 = x

f^-1(8) = 1.5

User Akrabi
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