Which of the Following Is Not True of Artificial Variables

question 14

Multiple Choice

Which of the following is not true of artificial variables?

• A)They have no meaning in a physical sense-nothing more than a computational tool.
• B)In all linear programs, they appear in the objective function with a very low cost ($M).
• C)They are usually used with ≥ constraints.
• D)They are usually used with = constraints.

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