homework for 9-1

hw for 9-1:  page 9, items 19, 20, 21

Don't forget that the feasible region is now smaller because we have introduced constraints, such as the maximum and minimum number of meals during the week, the maximum number of performances that Roy will buy tickets for, and the relationship between the number of tickets and the number of meals, m = 2(t)

Testing a point from a region means to plug the coordinates into the inequality to see if the statement is true for that point.