Can you refer the photo and explain the answer number 2 and 3 help me?

(why it is "2 thousand fewer trucks per day")

Thank you!

The figure to the right illustrates the trade-offs facing Ford Motor Company. The line in the graph is Ford's production possibilities frontier. N If Ford uses all its resources to produce trucks, how many can it produce? 8 thousand trucks per day. (Enter a numeric response using a real number rounded to one decimal place.) Suppose Ford is currently building 3 thousand cars per day. To build an additional 1 thousand cars, how many fewer trucks can be built? 2 thousand fewer trucks per day. According to the graph, building 3 thousand cars per day and 3 thousand trucks per day is Quantity of trucks (1,000s per day) technically inefficient . PPF O- 2 5 6 7 8 9 10 11 12 13 14 Quantity of cars (1,000s per day)