A perfectly competitive firm definitely will shut down in the short run if its price is below its average total cost

The slope

A) of a straight line is the same regardless of where on the line it is calculated. B) equals the change in the value of the variable measured on the vertical axis divided by the change in the variable measured along the horizontal axis. C) will be small if a large change in the variable measured on the vertical axis is associated with a small change in the variable measured along the horizontal axis. D) Answers A and B are correct. E) Answers A and C are correct.

In the foreign exchange market, an increase in the exchange rate leads to

A) an increase in the quantity of dollars demanded and no movement along the demand curve for dollars. B) an increase the quantity of dollars supplied and a movement along the supply curve of dollars. C) an increase the quantity of dollars supplied and no movement along the supply curve of dollars. D) a decrease the quantity of dollars supplied and a movement along the supply curve of dollars. E) an increase in the quantity of dollars demanded and a movement along the demand curve for dollars.