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Math Help - Derivative of specific point

  1. #1
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    [close]Derivative of specific point

    Derivative of specific point

    Function: x^3+2/x at the point -2,3

    I know the derivative is

    \frac{x^3+2}{x} ~?

    How would I insert the point into that function?

    Already got answer as 11.5.
    Last edited by CaptainBlack; September 13th 2011 at 07:56 PM.
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  2. #2
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    Re: Derivative of specific point

    Quote Originally Posted by ritacame View Post
    Function: x^3+2/x at the point -2,3
    Why in the world are you so lazy as to not use grouping symbols?
    Is it x^3+\frac{2}{x}\text{ or }\frac{x^3+2}{x}~?
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  3. #3
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    Re: Derivative of specific point

    Quote Originally Posted by Plato View Post
    Why in the world are you so lazy as to not use grouping symbols?
    Is it x^3+\frac{2}{x}\text{ or }\frac{x^3+2}{x}~?
    Why in the world are you so lazy as to not see on which of those options the point (-2, 3) lies?
    It's the latter, by the way.
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  4. #4
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    Re: Derivative of specific point

    Please be more careful with your language. There is a HUGE difference between a derivative AT a point and a derivative OF a point. The latter probably doesn't exist.
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  5. #5
    Super Member TheChaz's Avatar
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    Re: [close]Derivative of specific point

    Quote Originally Posted by ritacame View Post
    Close. People are rude here.

    Already got answer as 11.5.
    I rest my case.

    (@rita, please give us another chance!)
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