“One of the two classic problems in calculus is to find the area under the curve. Approximate the Area of the region bounded by the prevalent in the X axis. Ran to the nearest whole number.” The question is “the area under the curve is approximately _”

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.