Figure 4-4
Yasmine
30
27
24
21
18
15
12
9
6
3
↑price
D
3 6 9 12 15 18 21 24 quantity
始,開始係
Mercedes
price
21
18
15
12
9
6
3
D
3 69 12 15 18 21 24 27
15. Refer to Figure 4-4. Which of the following statements is correct?
a. If the price is $6, the market quantity demanded is 15 units.
b. If the price is $9, the market quantity demanded is 24 units.
c. If the price is $12, the market quantity demanded is 9 units.
d. If the price is $15, the market quantity demanded is 39 units.
quantity
16. What will happen to the equilibrium price and quantity of traditional camera film if traditional
cameras become more expensive, digital cameras become cheaper, the cost of the resources needed to
manufacture traditional film falls, and more firms decide to manufacture traditional film?
a. Price will fall, and the effect on quantity is ambiguous.
b. Price will rise, and the effect on quantity is ambiguous.
c. Quantity will fall, and the effect on price is ambiguous.
d. Quantity will rise, and the effect on price is ambiguous.
Ex's Si