Alayna parks her car in a lot that charges by the quarter hour. the table shows the parking fee, in dollars, with respect to the time, in hours. time (hours)0.250.5 0.7511.251.5 parking fee$0.50$1.00$1.50$2.00$2.50$3.00 time is the variable and should be placed on the parking fee is the variable and should be placed on the