Suppose the following table shows the production possibilities for an economy.

Production Point	Good X	Good Y
A	8	5
B	5	10
U	5	5

1. For good Y, what is the opportunity cost of moving from point A to point B?

b. For good X, what is the opportunity cost of moving from point B to point A?

c. For good X, what is the opportunity cost of moving from point U to point A?

d. Suppose points A and B are on the production possibility frontier. What conclusion can be drawn about production point U?