Graphically solve the following linear programming (LP)
problem:
MAXIMIZE $4X + $6Y
s.t. X + Y ≤ 10 ….(1)
X ≤ 4 ………….(2)
both X and Y ≥ 0
What can you say about the dual price for the 1st
constraint?
Keep your own graph.
Select one:
a. The dual price for the 1st constraint must be
zero.
b. The dual price for the 1st constraint cannot be
zero.





