Consider the linear program in Problem. The value of the optimal solution is 48. Suppose that the right-hand side for constraint 1 is increased from 9 to 10.
a. Use the graphical solution procedure to find the new optimal solution.
b. Use the solution to part (a) to determine the dual value for constraint 1.
c. The computer solution for the linear program in Problem 3 provides the following right-hand-side range information:

What does the right-hand-side range information for constraint 1 tell you about the dual value for constraint 1?
d. The dual value for constraint 2 is 3. Using this dual value and the right-hand-side range information in part (c), what conclusion can be drawn about the effect of changes to the right-hand side of constraint 2?

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RHS Value 900000 10.00000 18.00000 Allowable Increase 2.00000 8.00000 4.00000 Allowable Decrease Constraint 400000 100000 Infinite