In the market for tennis shoes, if the market price is $120, 1,000 pairs of shoes will be sold.

In the market for tennis shoes, if the market price is $120, 1,000 pairs of shoes will be sold. If the slope of the demand curve for tennis shoes is -100 how many shoes will be sold at a price of $110, $100, $90, and $80. Plot the demand curve with these points.