The value of a car in 1990 is 18700 dollars and the value is expected to go down

Question

The value of a car in 1990 is 18700 dollars and the value is expected to go down by 300 dollars per year for the next 9 years.

Write a linear equation for the value of the 1990 car, where V is the value of the car after x years from 1990.

What is the smallest value possible for x?

What is the largest value possible for x?

The value of a car in 1990 is 18700 dollars and the value is expected to go down by 300 dollars per year for the next 9 years. Write a linear equation for the value of the 1990 car, where V is the value of the car after x years from 1990. What is the smallest value possible for x? What is the largest value possible for x?

Explanation / Answer

V = 18700-300x

smallest possible value: 0

largest possible value: need 18700-300x > 0 so 18700> 300x and 62.333 > x

so largest possible value is 62

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