Question

A new ATV worth $500 is depreciating in value by $50 per year. The mathmatical model y=-50x+500 describes the value, y, in dollars after x years. Explain why the values of x and y must be nonegative

Answer 1

If the values of x and y are not positive, that means time goes backwards, resulting in the increase of the price instead of decrease.

Answer 2

Thanks

Answer 3

No problem.