Ann consumes two goods, r and y. Her utility function is given by: u(x, y) = (x+ 1)vy. The price of a is $4 per unit and the price of y is $- per unit. Ann's income is w. (a) (1 mark) Write down an expression for Ann's budget line. (b) (2 marks) Determine the formula for Ann's marginal utility of a, and the formula for Ann's marginal utility of y. (c) (6 marks) For each income level w 2 0 calculate Ann's optimal consumption bundle. (d) (2 marks) For which income levels w is bang-for-buck equalization violated at Ann's optimal consumption bundle? Explain. (e) (5 marks) Assume that w = 2. Draw Ann's budget line in a figure with x on the hor- izontal axis. Add 2 indifference curves of Ann, including the indifference curve that contains Ann's optimal consumption bundle. Indicate Ann's optimal consumption bundle