26. If both values AB and CD are perpendicular then if: A(1, 3), B(4, -2), C(6, 1), and D(x, y). Which are possible values of x and y?
A X = 1, y = -2
C X= 3, y= -4
B x= 3, y = 6
D x= -2, y = -4

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.