Two mirrors are kept perpendicular to each other a ray strikes one mirror at an angle of 45degree to the normal find the direction of the ray after reflection by the second mirror by drawing a ray diagram

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.