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12 December, 17:06

A car puchased for $12,000 depreciates under a straight-line method in the amount of $850 each year. Which equation below best models this depreciation?

A) y = 12000x + 850

B) y = 12000 + 850x

C) y = 12000x - 850

D) y = 12000 - 850x

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Answers (2)
  1. 12 December, 18:11
    0
    Answer D: y = $12,000 - ($850/year) x (Answer D)

    Step-by-step explanation:

    In all cases the value of the car begins at $12,000. From this we subtract $850 in depreciation each year.

    Thus, after one year, the value of the car is $12,000 - $850, or $11,150.

    After x years, the value is $12,000 - ($850/year) x (Answer D)
  2. 12 December, 19:53
    0
    D) y = 12000 - 850x

    Step-by-step explanation:

    Given that the car is purchased for an initial value of $12,000 and depreciates each year at the same rate, you can set 'x' equal to the amount of time in years and - $850 for the rate at which it declines in price each year. If 'y' represents the total value of the car, than after so many years 'x', at a rate of - $850 per year, then the best model for this scenario is:

    y = 12000 - 850x
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