10. Deriving demand from an indifference map Ginny lives in Miami and enjoys drinking lattes and eating scones. The price of a latte is held constant at $4 throughout this problem. On the following graph, the purple curves (11 and 12) represent two of Ginny's indifference curves. The lines BC1 and BC2 show two budget constraints. Points X and Y show Ginny's optimum consumption bundles subject to these budget constraints. LATTES 20 18 16 14 12 10 8 6 4 2 112 BC 0 1 BC2 0 2 4 6 8 10 12 14 16 18 20 SCONES (?