Write a linear equation that models the value of the automobile in terms of the year x?


automobile
charliemo asked:


The average value of a certain type of automobile was $15,780 in 1992 and depreciated to $6720 in 1996. Let y be the average value of the automobile in the year x, where x = 0 represent 1992.

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One Response to “Write a linear equation that models the value of the automobile in terms of the year x?”

  1. jgoulden Says:

    The automobile value dropped by (15780 - 6720) = 9060 dollars over four years for an average of 2265 lost per year. So your linear equation would be

    Y = 15870 - 2265 X

    where Y is the current value of the car and
    x is the number of years that passed since 1992
    (that is, X = Y - 1992 where Y is the current year) jgoulden

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