Charlie and kyle are training for a track meet. charlie's practice times for an event are represented on the graph, where y= the total miles run and x= the number of hours. kyle's practice times for the same event are represented by the linear function y= 7.5x. which statement best describes the rates of the runners.
a. kyle's rate is 1.5 miles per hour greater than charlie's rate.
b. charlie's rate is 1 mile per hour greater than kyle's rate.
c. kyle's rate if 1/2 mile per hour greater than charlie's rate.
d. the rate of each runner if the same.
(i am very sorry because i can't put the graph on here t_t)