Question 5. We know that the change in the optimum objective value equals (dual price X change in resource) so long as the change in the resource is within the feasibility range.

What about the associated optimum values of the variables?

The optimum values of the variables will definitely change. However, the level of information we have from the graphical solution is not sufficient to determine the new values. Section 3.6.2, which treats the sensitivity problem algebraically, provides this detail.

PROBLEM SET 3.6A