29. If product Y is an inferior good, an increase in consumer incomes will: A) result in a surplus of product Y. B) shift the demand curve for product Y to the left. C) not affect the sales of product Y. D) shift the demand curve for product Y to the right. E) both A and D are correct. Use the following to answer questions 30-32: Price Quantity demanded $6 QUAWN -NWAL 30. Refer to the data provided above. The price elasticity of demand is unity: A) over the entire $6-$4 price range. B) over the entire $3-$1 price range. C) throughout the entire price range because the slope of the demand curve is constant. D) in the $4-$3 price range only. E) none of the above. 31. Refer to the data provided above. The price elasticity of demand is relatively elastic: A) in the $6-$5 price range only. B) in the $3-$1 price range. C) in the $6-$4 price range. D) over the entire $6-$1 price range. E) none of the above