Suppose that the demand and supply functions for good x are given as follows: Of = 600-2P - I + P and Of = Px - 21 +s - 2f where Pr denotes the price of good x, P, denotes the price of a related product y, I denotes income, t denotes tax firms face, s denotes subsidy and f denotes factor prices. What happens to the demand and supply of x as factor prices (f) falls? Supply shifts to the left while demand stays the same. No change in Demand and Supply. Both supply and demand shift to the right. Supply shifts to the right while demand stays the same