Assume the following Keynesian model: AE = C + I + G + (X - M) C = 500 + .9Yd I = 300 G = 100 X = 150 M = 50 + .1 Yd T = 100 a. Find the equilibrium level of GDP. b. Using a “Keynesian cross” (or 45-degree line) diagram, show graphically the equilibrium in part a). c. What is the spending multiplier in this model? Tax multiplier? d. Show that leakages are equal to injections at equilibrium. e. What is the government’s budget position at equilibrium? f. If government spending increases by $100, find the new equilibrium level of GDP. Show graphically.