Figure 5-12 45 T Price 39 36 +- 33 + 30 + 27 + 24 21 + 18+ 15 + 12 - 9+ W C Demand 200 400 600 800 1000 1200 1400 Quantity 252. Refer to Figure 5-12. Using the midpoint method, the price elasticity of demand between point X and point Y is a. 0.4. b. 1. C. 2. d. 2.5. 253. Refer to Figure 5-12. Using the midpoint method, the price elasticity of demand between point Y and point Z is a. 0.5. b. 0.75. c. 1.0. d. 1.3