Suppose 10,000 units of good X are sold when the price of good is $5 and that 12,000 units of good X are sold when the price of good Yis $7. Which statement is correct?
A. The cross-price elasticity of demand is-6/11 and the good are substitutes.
B. The cross-price elasticity of demand is 6/11 and the good are substitutes.
C. The cross-price elasticity of demand is 6/11 and the good are complements
D. The cross price elasticity of demand is -6/11 and the good are complements
