This has to be turned in tomorrow or i will fail the camille is making a graph that shows the proportional relationship between the amount of money collected, y, and the number of tickets sold, x. she correctly plots the point (300,750). which of these statements are true? choose all that apply. a: the point (180, 450) is on the graph because $450 dollars will be collected if 180 tickets are sold. b: the point (1, 0.4) is on the graph and identifies that the cost for each ticket is $0.40. c: the constant of proportionality is 750/300, which is equal to 2.5. d: the point (0, 0) is on the graph because on money is collected if no tickets are sold. e: the point (5, 12.5) is not on the graph because it is impossible to sell 12.5 tickets. f: the equation y = 2.5x represents this situation.