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Math Help - Econ Related - Marginal Cost and Average Cost

  1. #1
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    Econ Related - Marginal Cost and Average Cost

    Hello everyone,

    I am struggling mightily with how find MC and AC from this equation TC = 35 + 5Q 2Q^2 + 2Q^3

    I've emailed my professor, and poured over difference youtube videos and online forums, but i still don't understand how solve this equation

    Any help would be greatly appreciated!
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  2. #2
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    Re: Econ Related - Marginal Cost and Average Cost

    To get the average cost, divide the total cost by the number of units produced.
    AC = \frac{TC}{Q} = \frac{35 + 5Q - 2Q^2 + 2Q^3}{Q}


    To get the marginal cost, differentiate the total cost.
    AC = \frac{d(TC)}{dQ} = 5-10Q+6Q^2
    Last edited by SpringFan25; May 26th 2013 at 02:45 PM.
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