Suppose that the demand and supply functions for good x are given as follows: Of = 240 -2P, + 1 - P, and Of = -30 + P. - 2t +s -2f where P. 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 price of y rises? No change in Demand supply. Demand shifts to the left while supply stays the same. )Demand shifts to the right while supply stays the same. O Both supply and demand shift to the left