A constraint with a positive slack value Select one: a. will have a dual price of zero. b. has no restrictions for its dual price. c. will have a negative dual price. d. will have a positive dual price.

(A) will have a dual price of zero.

Explanation:

A slack variable is a variable that is added to an inequality constraint to transform it into an equality. if a slack variable is positive at a particular candidate solution, the constraint is non-binding there, as the constraint does not restrict the possible changes from that point. If a slack variable is negative at some point, the point is infeasible (not allowed), as it does not satisfy the constraint.

Also, if a slack variable value is positive, its dual price is zero. If a slack variable value is zero, its dual price is positive.

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