SOLUTION: Find f-1x for: f(x)=√(2x) for x≥0

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Question 960329: Find f-1x for:
f(x)=√(2x) for x≥0
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use x,y nomenclature.
y=sqrt%282x%29
Interchange x and y and solve for y, that's the inverse.
x=sqrt%282y%29
x%5E2=2y
y=x%5E2%2F2
f%5E%28-1%29%28x%29=x%5E2%2F2