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Posted by Melanie on Sunday, August 7, 2011 at 10:28am.

I think this is a easy trick question, so I probably know the answer but I just wanted to double check. What is the domain and range of the function f(x) = 3^x Find the f^-1 and its domain and range? Thanks for your help.

domain: any real number range: any real number > 0 for the domain of the inverse function, since you interchange the x and the y, the range of the old becomes the domain of the inverse, and vice versa.

Thank you - that is exactly what I thought!

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