Question Consider the utility function of the following form: u(x, y) = vxy. The price of good x is $20 and good y is $10. Assume total expenditure on two goods cannot exceed $200. a) Use the Lagrange method to determine the optimal consumption bundle. Show all working. (8 Marks) b) Verify the optimal consumption bundle in a) above satisfy the consumer equilibrium condition. (2 Marks)