10. Figure 6-4 11. O Graph (a) Graph (b) 12. 13. O 10 10 14. O Supply Supply 15 16 O Price Floor PRICE PRICE 17. O 18. O A W 19. O Price Ceiling N N 20. Demand Demand 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 QUANTITY QUANTITY Refer to Figure 6-4 . In graph (b), there will be O a. lines of people waiting to buy the good. O b. a shortage O c. equilibrium in the market. O d. a surplus