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Math Help - I don't understand this problem

  1. #1
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    I don't understand this problem

    Okay, I don't understand this problem mainly because my professor has not gone over this and i haven't done any precalculus for a year, so I am stuck. So if some one could explain this to me, I would deeply appreciate it.

    Here is the problem:
    If the point (-5,5) is on the graph of f(x) and f(x) is known to be an odd function, what other point must be on the graph of f(x)?
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  2. #2
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    Quote Originally Posted by lsnyder View Post
    Okay, I don't understand this problem mainly because my professor has not gone over this and i haven't done any precalculus for a year, so I am stuck. So if some one could explain this to me, I would deeply appreciate it.

    Here is the problem:
    If the point (-5,5) is on the graph of f(x) and f(x) is known to be an odd function, what other point must be on the graph of f(x)?
    If f(x) is odd, then f(x) = -f(x) (that is the definition of an odd function).

    So if f(-5) = 5

    Then f(-5) = - 5

    So the point (-5,-5) must also be on the graph.
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  3. #3
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    thank you so much.

    even though when i typed it in on my homework, it was wrong.
    it was actually (5,-5).

    but it made more sense to me as soon as you explained it.
    thank you again.
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  4. #4
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    Quote Originally Posted by lsnyder View Post
    thank you so much.

    even though when i typed it in on my homework, it was wrong.
    it was actually (5,-5).

    but it made more sense to me as soon as you explained it.
    thank you again.
    Ah yes, sorry. That's a typo on my part.
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