1.	When two lines have different slopes, the graphs of the equations are _________
		A.	horizontal lines.	B.	the same line.
		C.	parallel lines.	D.	intersecting lines.
		Hint
	2.	Solve the system of equations by graphing.
		A.	(0, 3)	B.	infinitely many solutions
		C.	(-1, 7)	D.	no solution
		Hint
	3.	What is true about the system and
		A.	The system has infinitely many solutions.
		B.	The system is consistent and independent.
		C.	The system is inconsistent.
		D.	The system is consistent and dependent.
		Hint
	4.	Which of the following systems of equations is inconsistent?
		A.	y = 7x – 2 y = –2x – 5
		B.	y = 2x – 3 y = –3x + 4
		C.	3y + 2x = 13 6y + 4x = 3
		D.	4y – x = 12 3y – 2x = 1
		Hint
	5.	Which of the following systems of equations is not consistent and independent?
		A.	7y + x = 9 3y + 9x = 4
		B.	2y + 4x = 3 7y + 5x = 18
		C.	y + 4x = 10 6y + 24x = 60
		D.	–y – 5x = 1 4y + 3x = 8
		Hint