What is the domain and range of f(x)=3^x?

1 Answer
Daniel L.
Jul 1, 2017

See explanation.

Explanation:

The domain is the maximum subset of RR, for which the function's value can be calculated.
Any number can be an exponent of a power, so the domain is

D=RR

The range is the set of all values taken by the function.

If you rise 3 to any real power, the result is always greater than zero, so the range is:

R=(0;+oo)

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