A formula in the form y = mx+22,000 models the average retail price, y, of a new car x years after 2000. Would you expect m to be positive, negative, or zero? Explain your answer

Question

A formula in the form y = mx+22,000 models the average retail price, y, of a new car x years after 2000. Would you expect m to be positive, negative, or zero? Explain your answer

Answer 1

The slope must be negative because the value decreases over time