If f(x) = 3x-8, what is f^-1(-4)
I was given the following Piecewise function:
f(x) = 3x-18, x<0
f(x) = x2-8, 0≤x<3
f(x) = (x-2)3, x≥3
And I was asked:
What is f -1(-4)
It was multiple choice. The given answers were:
D: Two minus the cubed root of 4
E: The answer cannot be determined from the information given.
I put E. What would you have said?