Suppose the estimated demand function for movie tickets is: Qd = 1000 - 200P + 0.2Y, where Qd is the quantity of movie tickets demanded, P is the price of movie tickets, and Y is consumer income. If the price of movie tickets rises by $1, and consumer income is held constant, the estimated quantity demanded of movie tickets would Group of answer choices increase by 50 decrease by 200 decrease by 50 increase by 200