Question 2: This question involves algebraically solving the system of two equations given by the AD and AS curves. The equations for the curves are given by: AD: YAD = 710 - 30P + 5G AS: YAS = 10 + 5P - 2Poil Where Y is real GDP, P is the price level, G is the level of government purchases, and Pou is the world price of oil a. Explain why the coefficient of P on the AD equation is negative, and the coefficient of G is positive b. Explain why the coefficient of P on the AS curve is positive, and coefficient of Pou is negative. c. Solve for the equilibrium value of real GDP and the price level as a function of G and Pou. d. If G increases by one unit, how will the equilibrium Y and P change? If Pou increases by one unit, how will the equilibrium Y and P change