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Math Help - Difference Quotient

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    Difference Quotient...help

    I'm having trouble with this, it's the first time we cover Difference Quotients and I don't know how to solve them as a fraction. Thanks for your help!

    g(x) = 1/(x+2)
    Last edited by rrooggeerr; September 10th 2012 at 01:36 PM.
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    Re: Difference Quotient...help

    Quote Originally Posted by rrooggeerr View Post
    I'm having trouble with this, it's the first time we cover Difference Quotients and I don't know how to solve them as a fraction. Thanks for your help!

    g(x) = 1/(x+2)
    Just for clarity...Is this supposed to be something like
    \frac{g(x + h) - g(x)}{h}

    or such like?

    -Dan
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    Re: Difference Quotient...help

    Quote Originally Posted by rrooggeerr View Post
    I'm having trouble with this, it's the first time we cover Difference Quotients and I don't know how to solve them as a fraction. Thanks for your help!

    g(x) = 1/(x+2)
    Do you mean without actually doing anything yourself? I can't think of any way- my experience is that no matter how long I stare at the paper, nothing appears on it. Normally, what I would have to do is write out the formula for a "difference quotient", the put the specific function I am interested into the formula in the right places. After that it is just 'algebra', perhaps things like subtracting fractions by getting the same denominator.
    Last edited by HallsofIvy; September 10th 2012 at 04:50 PM.
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