28. Which curve does Figure 3 represent? Clothing (Units per Week) (a) the price-consumption curve. (b) the demand curve. (c) the income-consumption curve. (d) the Engel curve. (e) none of the above U. U₂ U₂ Figure 3 What is this -curve? Food (Units per week)

10) Figure 1 shows some indifference curves and budget lines for consumer Yusuf. Milk A B Cheese Figure 1 If Yusuf's income increases, his optimal consumption changes from point A to point B. Which of the following statements is true for Yusuf? (a) Cheese and milk are substitutes. (b) Cheese is an inferior good. (c) Milk is an inferior good . (d) Milk is a normal good. (e) None of the above.

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Figure 4-6Refer to Figure 4-6.  The movement from D’ to D could be caused by   a. an increase in the price of a complement.   b. a decrease in income, assuming the good is inferior.   c. a decrease in price.   d. buyers expecting the price of the good to fall in the near future.