5. Solve the following UMP. M) u=a;+59%,p=2,p, =7,m=141. 1 2 (i) u = x13x53, derive the demand function as a function of p4,p,, m. Continuous from (11), what 1s the portion of income spent on good 17 When price of good 2 increases, will the demand for good 1 change? If so, how 1s the change? Give your intuition on why there is a change. Continuous from (i1), when the income doubles, what is the new demand for good 17 Compare 1t with the old one