SOLUTION: More word problems. 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 automobe in the year

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Question 134998: More word problems.
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 automobe in the year x, where x=0 represents 1992. Write a linear equation that models the value of the automobile in terms of the year x.
Answer by stanbon(48558) About Me  (Show Source):
You can put this solution on YOUR website!
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 automobe in the year x, where x=0 represents 1992. Write a linear equation that models the value of the automobile in terms of the year x.
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y-intercept = 15,780
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slope = (6720-15780)/(1996-1992) = -2265
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EQUATION:
y = -2265x + 15780
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Cheers,
Stan H.