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Math Help - How do I graph these two functions when they are undefined?

  1. #1
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    How do I graph these two functions when they are undefined?

    The question states:
    Sketch the graph of each of the functions listed in the first column and fill in the table. If possible, determine the exact value and show your work.

    How do I graph them when "b" is not even defined?
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  2. #2
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    Quote Originally Posted by mwok View Post
    The question states:
    Sketch the graph of each of the functions listed in the first column and fill in the table. If possible, determine the exact value and show your work.

    How do I graph them when "b" is not even defined?
    f(x) is undefined when is only when x<=0
    g(x) has an asymptote at x = 1 ..so it's undefined only when x = 1

    That should be easy to sketch
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  3. #3
    Junior Member Ziaris's Avatar
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    You cannot. \log_b x = \frac{\log x}{\log b}, so that the logarithm is identical to logarithms of other bases for x=1 and no other point. A base must be specified, otherwise there would be no way to graph it.
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