Part 1. Each multiple choice or true/false question is worth 2 points. Highlight the correct response.

1. The condition of nonnegativity requires that:

	a.	the objective function cannot be less than zero
	b.	the decision variables cannot be less than zero
	c.	the right-hand side of the constraints cannot be greater than zero
	d.	the reduced cost cannot be less than zero

2. When the profit increases with a unit increase in a resource, this change in profit will be shown in Solver's sensitivity report as the:

	a.	add-in price
	b.	sensitivity price
	c.	shadow price
	d.	additional profit

3. When a workforce scheduling problem is formulated as an integer programming model, it has:

	a.	an integer objective function
	b.	integer technological coefficients
	c.	integer constraints
	d.	all of these options

4. Which of the following statements is a type of constraint that is often required in blending problems?

	a.	Integer constraint
	b.	Quality constraint
	c.	Binary constraint
	d.	None of these options

5. The decision variables in transportation problems are:

	a.	profits
	b.	costs
	c.	flows
	d.	capacities