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    woodyp20's Avatar
    woodyp20 Posts: 12, Reputation: 1
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    #1

    Feb 5, 2011, 12:49 PM
    Equation
    Bob owns a watch repair shop. He has found that the cost of operating his shop is given by c(x)= 2x^2-16x+269 , where x is the number of watches repaired. What is his minimum cost?
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Feb 5, 2011, 12:54 PM

    Without using calculus, you can use to find the minimum cost.

    a and b are the coefficients of your quadratic and c is the constant.
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    woodyp20 Posts: 12, Reputation: 1
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    #3

    Feb 5, 2011, 01:02 PM
    I need the answer to it
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #4

    Feb 5, 2011, 01:25 PM

    That's why I gave you an easy formula. Surely you can plug the values into the formula.
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    woodyp20 Posts: 12, Reputation: 1
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    #5

    Feb 5, 2011, 01:49 PM
    I got $237 :) Thanks
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #6

    Feb 5, 2011, 02:08 PM

    Yep, that's it. :)
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