Nine Exercises
Locating the IDENTITY SUB-MATRIX

Nine simplex tableaus are shown, with links to the earlier exercises which created them. For each problem, you must name the columns containing the IDENTITY SUB-MATRIX. You may want to review a general discussion of how to do this.

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 [1] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, x3, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [2] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [3] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [4] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [5] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, x3, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [6] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [7] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [8] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, x3, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns

 [9] Highlighted below is the tableau resulting from row operations in the previous step. Click below on whichever TWO buttons (x1, x2, s1, s2) name columns of the IDENTITY SUB-MATRIX.

Name ISM columns