In the above figure a consumer is initially at equilibrium at point C. The consumer’s income is $400, and the budget line through point C is given by $400 = 100X + 200Y. When the consumer is given a $100 gift certificate that is good only for product X, she moves to a new equilibrium point at point D. (a) How many units of product X will be purchased at point B? Please explain. (b) How many units of Product X will be purchased at point F? Please explain. (c) Please rank the bundles of goods A, B, C, D, from least preferred to most preferred (from  lowest utility or satisfaction to highest utility of satisfaction).

The utility function of a consumer is u = √x + 2y. (a) Calculate how much MRS of that consumer when x = 4. (b) If the consumer currently consumes 4 units of goods x and the price ratio of Px / Py = 1/4, then the consumer should increase or decrease the consumption of goods x?

34) Consider Dianna who has a $25 fast food budget per month. She can purchase salads (S), hamburgers (H), or chicken strips (C). The price of a salad is Ps=$3, the price of a hamburger is PB-$2 and the price of chicken strips is Pc $4. Fill in the table below. You will use your solutions to answer questions 34-36. # Hamburgers # Salads 1 2 2 MU Salads 36 30 c) 4; 3; 4 d) 5; 4; 5 MU/P Salads 1 2 3 4 5 MU hamburgers 5 In the optimal consumption bundle for Dianna, she will purchase chicken strips. a) 2; 1; 2 b) 3; 2; 3 28 22 16 36) Dianna total utility from her consumption bundle is a) 126 b) 504 c) 106 d) 398 MU/P # Hamburgers Chicken Strips T 2 3 7 salads, 4 5 35) Dianna's utility is maximized where the marginal utility per dollar spent on each item is equal to a) $10 b) $12 c) $14 d) $16 MU Chicken Strips 72 64 56 48 40 hamburgers, and MU/P Chicken Strips

A consumer has a budget of £12 to split between two goods: good 1 has a price of 2, good 2 has a price of 3. Write the consumer’s budget constraint algebraically. Convert this budget constraint into the formula for the budget line. Show this line on a suitably labelled graph. The consumer’s budget increases to £24. Show the effect of this change graphically.  A consumer dislikes good 1, and dislikes good 2. Show these preferences on a suitably labelled graph with an indifference curve. Label the graph: which areas would be preferred to those on the line?