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July 6th, 2017, 11:14 AM  #1 
Newbie Joined: Jun 2017 From: Wisconsin Posts: 15 Thanks: 0  Confused about when to Pivot in a Tableau Table
I'm a bit confused about when to pivot in a tableau table using the simplex method. Here is the problem: Pivot about the indicated 2 of the following initial simplex tableau x1 x2 x3 s1 s2 s3 z 2 1 1 1 0 0 0 150 1 2 8 0 1 0 0 200 2 3 1 0 0 1 0 320 _______________________________ 3 2 1 0 0 0 1 0 In my textbook it states "to change the tableau by using one of the nonzero entries of the tableau as a pivot." So in that case why are they pivoting on the 2 in the first column, first row for x1? Wouldn't the nonzero entries be s1, s2 and s3 since they are basic variables? 

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confused, pivot, table, tableau 
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