SOLUTION: If g(x)=2x^2 find g^-1(x) Please help

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Question 388897: If g(x)=2x^2 find g^-1(x)
Please help

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If g(x)=2x^2 find g^-1(x)
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1st: Interchange x and y:
x = 2y^2
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2nd: solve for "y":
x/2 = y^2
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y = +-sqrt[x/2]
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cheers,
Stan H.