Before Wagner's move to the Puck building, a group of microeconomics students undertook a market study of the demand and supply for coffee at the new Wagner cafe. The results are presented in the graph below, and presume that the supplier will operate as though in a perfectly competitive environment since there are several coffee houses nearby. (Based on an exam question.)

Price ($) 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Cups of Coffee/day