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Simplex / Big M method Tableau question
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[QUOTE="USN2ENG, post: 4507528, member: 301251"] [h2]Homework Statement [/h2] This is from a study guide that I don't have the answers to just yet and I am trying to figure out this last problem for my OR class. I am either confused or the problem is written wrong. I am probably confused though. Any help would be great! This Tableau is for a Maximization problem. Which of the following cases is true and why? See the attached screen shot for the Tableau: A) We have reached a unique optimal solution and the solution is: B) We have not reached optimal solution. The entering variable is ________ and the exiting variable is ________. C) The problem is unbounded. D) There are many optimal solutions because: E) The problem is infeasible because: [h2]Homework Equations[/h2] [h2]The Attempt at a Solution[/h2] So, this problem confuses me for a couple of reasons. a1 still has M in Row 0, but that could be ok if that is how the math turned out in the row operations. The other problem is that x2 can enter the basis and making it basic will not change z, so we have many solutions. My only problem with that is the problem before this one is this exact Tableau but without the a1 column, so that would be the same answer. So I guess I am expecting that he added the a1 column for a reason and I am not seeing it. Thanks for any help. [/QUOTE]
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Simplex / Big M method Tableau question
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