SOLUTION: determine f-1 for f(x) = cubed root of(x+5) (in f -1) is not f minus 1 or the negative 1 power of f)

Question 4941: determine f-1 for f(x) = cubed root of(x+5)
(in f -1) is not f minus 1 or the negative 1 power of f)
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
By you refer to the inverse of the function f(x). Am I right?

Given y = cuberoot (x+5)
My approach to finding an inverse of f(x) is two steps.

Step 1. Interchange the x and y.
x= cuberoot (y+5)

Step 2. Solve for y.
To undo the cuberoot, you must cube both sides:

Next, undo the +5 by subtracting 5 from each side:

This new y that you just solved for the the inverse function for f(x)

The inverse function for is

R^2 at SCC
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