Refer to the following indifference map for a consumer who has an income of $48 to spend on goods X and Y and the market prices of X and Y are both $4: 14 E 12 10 8 Good Y 6 4 III II 2 X 0 2 4 6 10 12 14 16 Good X After the price of good X increases to $12 while the price of good Y remains $4, how many units of good X would be purchased