“Explain the difference between continuous and discrete graphs. Please provide a real life scene where each one would be used. Provide specific examples of each to support your ideas.” I can’t do any other work if I don’t answer this question, please help

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.