a new car that sells for $18,000 depreciates 25% each year. write a function that models the value of the car. find the value of the car after 4 years

Let the variable of time is t and the prix is x so

f(t) = x - x * 0.25*t so we have x = 18 000$

so f(t) = 18 000 - 18 000 * 0.25 * t = 18 000 - 4 500 * t

so the function is f( t )= 18 000 - 4 500 * t

we have a car depreciates 25% each year so 18 000 * 0.25 = 4 500

so the prix of the car reduce with average of 4 500$ each year so

after 4 years the value of the car is 18 000 - 4 500 * 4 = 0 $

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