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The graph below models the value of a $20,000 car t years after it was purchased.
Dollars
20000
18000
16000
14000
12000
10000
8000
6000
4000
2000
Value of Car
51:08
2 4 6 8 10 12 14 16 18 t
Years
Which statement best describes why the value of the car is a function of the number of years since it was purchased?
each car value, y , is associated with exactly one time, t.
Each time, t, is associated with exactly one car value, y.
The rate at which the car decreases in value is not constant
There is no time, t, at which the value of the car is 0.