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.

Algebra  Reiny, Sunday, August 7, 2011 at 10:36am
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.

Algebra  Melanie, Sunday, August 7, 2011 at 11:06am
Thank you  that is exactly what I thought!
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