3. (20) Suppose your income is $48 and the price of Y is $4 per lulit. The following diagram shows your indifference curves for goods X and Y. Us. a. Give The coordinates of Two points on your demand curve for X {label the each axis). b. 15 X a Giffen or non-Gi'en good? How do you lino\"? c. Can a good have both an upward-sloping Engel curve and an upwaId-sloping demand curve? Why or why not? d. 15 X a Normal or Infelior good? How do you know