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Thread: Domain and Range of ln

  1. September 26th 2009, 10:50 AM #1
    lil_cookie
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    Domain and Range of ln

    What is the domain and range of ln(x+5)
    How can I go about finding it?
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  2. September 26th 2009, 11:39 AM #2
    skeeter
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    Quote Originally Posted by lil_cookie View Post
    What is the domain and range of ln(x+5)
    How can I go about finding it?
    you should already know that one may only take the log of positive values ...

    that means x+5 > 0

    now, what's the domain of y = \ln(x+5) ?
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