Acar 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

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)