SOLUTION: find the restricted domain and restricted inverse of f(x)=(x+2)^2 showing all work ?

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Question 836127: find the restricted domain and restricted inverse of f(x)=(x+2)^2 showing all work ?
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
restrict the domain to x%3E=-2 to make our function 1-1

Then the inverse can be found as follows:
y=%28x%2B2%29%5E2
sqrt%28y%29=x%2B2%29

so the inverse is

g%28x%29=sqrt%28x%29-2