Depreciation A car sells for $28,000.The car
depreciates such that each year it is worth 3/4 of its value from the previous year.Find a model for the value V of the car after t year.Sketch a graph of the model and determine the value of the car 4 years after it is purchased.

Respuesta :

Answer:

[tex]V(t)=28,000(0.75)^t[/tex].

$8859.375

Step-by-step explanation:

Please find the attachment for the function.

We have been given that a car sells for $28,000.The car  depreciates such that each year it is worth 3/4 of its value from the previous year. We are asked to find the model for the value V of the car after t years.

We know that an exponential function is in form [tex]y=a(b)^x[/tex], where,

a = Initial value,

b = Growth or depreciation rate.

Since each year the car worth 3/4 of its value from the previous year, so its value is depreciating and [tex]b=\frac{3}{4}=0.75[/tex].

Therefore, our required function would be [tex]V(t)=28,000(0.75)^t[/tex].

To find the value of car after 4 years, we need to substitute [tex]t=4[/tex] in our function as:

[tex]V(4)=28,000(0.75)^4[/tex]

[tex]V(4)=28,000(0.31640625)[/tex]

[tex]V(4)=8859.375[/tex]

Therefore, the value of the car after 4 years would be $8859.375.

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