Suppose the following equations represent the demand and supply of a good: Qd = 400- 2P Qs = -50 + P Find the inverse demand-supply equations. Graph both the original and inverse demand-supply equations and highlight their differences (slope, intercept etc.). b. (1.5) Using these equations, calculate the equilibrium price and quantity. Suppose the government provides a subsidy ($10/unit) to the seller. Determine the new equilibrium price and quantity, and the amount of subsidy. Show them on a diagram.