SOLUTION: Is a logarithm function always have a range of all real numbers?

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Question 1134274: Is a logarithm function always have a range of all real numbers?
Answer by MathLover1(20850) About Me  (Show Source):
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Remember that since the logarithmic function is the inverse of the exponential function, the domain of logarithmic function is the range of exponential function, and vice versa.
A simple exponential function like f%28x%29=2%5Ex has as its domain the set+ of real numbers. But its range is+only the positive real numbers.
Therefore, the domain of the logarithmic function y=log%28b%2Cx%29+is the set of positive real numbers and the range is the set of real+numbers.