21. What is a system of linear inequalities with an unbounded solution set., please use the information below

In problems 22-25, find the corner points of the solution set of the given system and indicate whether the solution set is bounded or unbounded.

22. 2 x + 3 y 6 , x 0 , y 0 .

23. 3 x + 4 y 24 , x 2 , y 12 .

24. 3 x + y 27 , x + y 5 , x 0 , y 0 .

25.x + y 11 , x + 5 y 15 , 2 x + y 10