For a constraint of the form 4x + 3y ≥ 12, which variable is normally subtracted to obtain an equality?
Correct answer: C. A surplus variable
- A. An artificial variable
- B. A slack variable
- C. A surplus variable
- D. A decision variable
Explanation
A surplus variable is subtracted from a greater-than-or-equal constraint, giving 4x + 3y minus s equal to 12. An artificial variable may also be needed to establish an initial basis, but it is not the variable used for the conversion itself.
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