Question: A particular LP problem has the following objective function: Maximize profit = $8X1 + $6X2 + $12X3 $2X4 Which variable should enter at the

A particular LP problem has the following objective function:
Maximize profit = $8X1 + $6X2 + $12X3 – $2X4
Which variable should enter at the second simplex tableau? If the objective function were
Minimize cost = $2.5X1 + $2.9X2 + $4.0X3 + $7.9X4
which variable would be the best candidate to enter the second tableau?

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