Question

Select the correct answer.

Answer 1

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Answer:

  A.  f^-1(x) = x³ -12

Step-by-step explanation:

The inverse function can be found by solving ...

  x = f(y)

  x = ∛(y +12) . . . . . use the definition of f(x)

  x³ = y +12 . . . . . . . cube both sides to eliminate the radical

  x³ -12 = y . . . . . . . add -12 to isolate the y-variable

  f^-1(x) = x³ -12 . . . matches choice A