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Math Help - calculate the difference quotient given the function

  1. #1
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    calculate the difference quotient given the function

    Given the function , calculate the difference quotient
    Can some one explain this? I plugged in -7/x for f(x) in the problem but then got stuck.

    Thanks
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  2. #2
    Super Member bigwave's Avatar
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    your first step should look like this

    <br />
\frac{\frac{-7}{x}-\frac{-7}{a}}{x-a}

    just finsh with the algrebra
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  3. #3
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    \displaystyle \frac{\dfrac{-7}{x}-\dfrac{-7}{a}}{x-a}

    Can you do simple algebra?
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