1. Given C= $150 + 0.50Y, I= 200 - 400i, Mt = 0.25Y, Ma= 50 -100i and Ms=$180 for the money and commodity markets. a) Derived the IS and LM equations. b) Solve for the equilibrium level of national income and interest rate. c) Solve for consumptions, savings and investment d) Solve for transaction demand for money and the speculative demand for money. 2. Discuss the general equilibrium of the IS and LM curves depicting the seven quadrant graphs. 3. Outline the characteristics of the IS and LM curves. b) What are the factors that shift the IS and LM curves