SOLUTION: I have function f(x)=2^x how do I find the inverse?

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Question 363898: I have function f(x)=2^x how do I find the inverse?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I have function f(x)=2^x how do I find the inverse?
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y = 2^x
Interchange x and y to get:
x = 2^y
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Solve for "y":
y = log2(x)
That is the inverse function.
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Cheers,
Stan H.