Kevin and Laura are parthers in a driver's ed business, providing a much-needed service to want to-be-drivers in their region. They have been satisfied with the profits theic busines shas generated to date, but they d like to have mere rellabie estimates for future costs. Belicving that then most certain cost driver for their total costs is number of students served, they sathered the following data for the past year. Use the high-low method to estimate a cost function for total monthly driver's ed costs based on number of students. Y=$X+$