0' . . . : a 1 Suppose another utility function \"le1'x2) X1X2 represents the same preference as m. d. What is the value of 0? Explain. [2 marks] e. Write down the expenditure function for yg, using the value of a you answered in (d). You do n_ot need to show the steps for deriving the expenditure function. You can simply refer to the relevant equation in Chapter 10 of your textbook or slides. [3 marks] f. The utility functions yd and y; represent the same preference. But do they have the same expenditure function? If not, why not? [3 marks] 9. Do you think 95d and u; have the same (ordinary) demand functions? Explain. (You do n_ot need to actually find the ordinary demand functions or write them down)