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2. Shifts in supply or demand 11 The following graph shows the market for pizzas in Detroit, where there are over a thousand pizza restaurants at any given moment. Suppose the price of grated cheese, a major ingredient in pizzas, suddenly decreases. Show the effect of this change on the market for pizzas by shifting one of the curves on the following graph, holding all else constant. PRICE (Dollars per pizza) QUANTITY (Pizzas) /\\ \\/ D mand Demand Supply (9