The following graph gives two points (A and B) along a hypothetical demand curve for seitan. A graph with price in dollars per pound on the y-axis ranging from 0 to 10 and quantity in thousands of pounds of seitan on the x-axis ranging from 0 to 100 in increments of 10 plots a downward-sloping straight line demand curve through points (40, $7) labeled A and (20, $8) labeled B. 0 10 20 30 40 50 60 70 80 90 100 110 12 11 10 9 8 7 6 5 4 3 2 1 0 PRICE (Dollars per pound) QUANTITY (Thousands of pounds of seitan) Demand A B Using the midpoint method, the price elasticity of demand for seitan between point A and point B is approximately . This indicates that demand for seitan is between points A and B