Chase bought concert tickets online. The table below shows the total cost, y, for x numbers of tickets purchased. Number of Tickets, x 2. Total Cost in Dollars, y $58.50 $107.50 $205.50 $303.50 $499.50 8 12 20 Chase made four statements, shown below, about the tickets he purchased. 1. The cost per ticket is $24.50. II. The service charge is $9.50. III. The slope of the graph of this data is 9.5. IV. The y-intercept of the graph of this data is 24.5. Which of his statements is true?