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Need help on this question please and thank you

Need help on this question please and thank you-example-1
User Typedecker
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Answer:

D. f^-1(x) = x^3 +15

Explanation:

The inverse of ...

y = f(x)

is ...

x = f(y)

Solving this for y gives ...

x = ∛(y -15)

x³ = y -15 . . . . . . . . cube both sides

x³ +15 = y . . . . . . . add 15

The inverse function is ...

f^-1(x) = x³ +15

User Rebagliatte
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