At a flea market, used computer games are sold at the prices shown in the table below. Number of Games Price ($) 2 9.00 5 22.50 7 31.50 Do the number of games and price form a proportional relationship? Choose the correct response. Yes. There is a constant of proportionality of $11.25. Yes. There is a constant of proportionality of $4.50. No. There is not a constant of proportionality. No. The slope is 4.5.