1.	What is true about the system and
		A.	The system is inconsistent.
		B.	The system has infinitely many solutions.
		C.	The system is consistent and independent.
		D.	The system is consistent and dependent.
		Hint
	2.	Solve the system of equations by using substitution.
		A.	(4, 9)	B.	(1, 3)
		C.	(3, 7)	D.	(5, 11)
		Hint
	3.	Solve the system of equations by using the elimination method.
		A.	(2, 3)	B.	(4, 2)
		C.	(34, -13)	D.	(12, -2)
		Hint
	4.	Solve the system of inequalities by graphing.
		A.		B.
		C.		D.
		Hint
	5.	Which is not a point at which a maximum or minimum value of a function could occur for the feasible region?
		A.	(-3, 6)	B.	(-3, 0)
		C.	(0, 3)	D.	(1, 5)
		Hint
	6.	A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn?
		A.	$1.80	B.	$3.30
		C.	$4.55	D.	$4.80
		Hint
	7.	A graph of a system of three linear equations in three variables is shown below. How many solutions does the system have?
		A.	infinite number	B.	0
		C.	1	D.	2
		Hint
	8.	The Waxmans just opened a carpet store. Their startup costs were $5000, and their cost of carpet is $8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for $18 per square yard?
		A.	278 square yards	B.	500 square yards
		C.	192 square yards	D.	50 square yards
		Hint
	9.	Which of the following is not a vertex of the figure formed by
		A.	(2, –1)	B.
		C.	(6, 4)	D.	(0, 2)
		Hint
	10.	What are the solutions to the system y + 2x – 5z = 4, –2y – 4x + 10z = 8, 3y + x – 3z = 5?
		A.	(2, 2, 1)	B.	infinite
		C.	(2, 2, –2)	D.	no solution
		Hint