Question

Johnny wants to sell his car that he paid $7,000 for 2 years ago. The car depreciated, or decreased in value, at a constant rate each month over a 2-year period. If x represents the monthly depreciation amount, which expression shows how much Johnny can sell his car for today?

7,000 − 24x
7,000 − 2x
7,000 + 24x
7,000 + 2x

Answer 1

Option. 7,000 − 24x

Explanation:

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Answer 2

Option. 7,000 − 24x

Explanation:

Let

y ----> depreciated value of the car

x---> rate of depreciation

t ----> the time in months

we know that

The linear equation that represent this situation is

y=7,000-xt

For

t=2 years

Convert to months

t=2*12=24 months

substitute

y=7,000-x(24)

y=7,000-24x