Refer to the figure shown below.
The feasible region that satisfies all the constraints is the shaded region.
The bounding vertices are
A (0, 3)
B (0, 0)
C (5, 0)
D (1.5, 3.5)
All the functions that define the constraints are either linear or constant.
The maximum value is at vertex D, and equal to 3.5.
