Tableau's and basic variables???

[kmille]

In the following tableau what are the basic variables?

X1 X2 X3 S1 S2 S3 Z
[ 1 1/2 1 1/2 0 0 0 | 50 ]
[ 0 3/2 1 -1/2 1 0 0 | 50 ]
[ 0 1 -1 -1 0 1 0 | 100 ]
______________________
[ 0 -9 4 11 0 0 1 | 1100 ]



A. X1, X2, and X3
B. X1, X3, and S2
C. X1, S2, and S3
D. S1, S2, and S3

:?

 

[tkhunny]

You need a definition. What is it? It simply MUST be in your book.