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Math Help - Fuction limit question

  1. #1
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    Fuction limit question

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  2. #2
    Senior Member apcalculus's Avatar
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    Quote Originally Posted by greenbee View Post
    The graph must be:

    The minus sign should be a plus... I think. If it is, then see attached graph.


    Numerically, in Excel, I get:

    x f(x)
    1 4
    10 13.78584918
    100 19.21863198
    1000 19.99553462
    10000 20.07650227
    100000 20.08463311
    1000000 20.08544654

    Good luck!!
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  3. #3
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    Quote Originally Posted by apcalculus View Post
    The graph must be:

    The minus sign should be a plus... I think. If it is, then see attached graph.


    Numerically, in Excel, I get:

    x f(x)
    1 4
    10 13.78584918
    100 19.21863198
    1000 19.99553462
    10000 20.07650227
    100000 20.08463311
    1000000 20.08544654

    Good luck!!
    i'm not good with math so
    a) 4
    b) 20.0854
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  4. #4
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    mr fantastic's Avatar
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    Quote Originally Posted by greenbee View Post
    For what it's worth, the exact limit is e^{-3}. If (as has been suggested earlier but I'm not sure why) the minus is meant to be a plus then the exact limit is e^{3}.
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  5. #5
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    Quote Originally Posted by mr fantastic View Post
    For what it's worth, the exact limit is e^{-3}. If (as has been suggested earlier but I'm not sure why) the minus is meant to be a plus then the exact limit is e^{3}.
    what a disgusting problem!!! but ty fo helping me!!!

    so

    a) is
    e^{3}
    b) 20.08544

    i am stupid with math! please just tell me bows*
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