If voters A,B,and C have the following demand curves for a public library P_a = 5 - 2Q,P_b = 7 - 0.5Q,and P_c = 2 - 4Q,then market demand for a public library is

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To find market demand, we need to sum up the individual demands of A, B, and C at each price level. P_a = 5 - 2Q P_b = 7 - 0.5Q P_c = 2 - 4Q Market demand: P = P_a + P_b + P_c = (5 - 2Q) + (7 - 0.5Q) + (2 - 4Q) = 14 - 6.5Q Therefore, the market demand curve for a public library is P = 14 - 6.5Q.

If Voters A,B,and C Have the Following Demand Curves for a Public