The group of points {(0, 1), (0,5), (2, 6), (3, 3)} is not a function, but the group of points {(1, 4), (2,7). (3, 1), (5,7)} is a function. What do you notice about the two groups of
points? What do you think it means to be a function?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.