1.	Which graph shows a line with an undefined slope?
		A.		B.
		C.		D.
		Hint
	2.	Which graph shows a line with a slope of passing through (-1,0)?
		A.		B.
		C.		D.
		Hint
	3.	Find the value of x so the line that passes through (x, 5) and (12, 2) is perpendicular to the line that passes through (0, 1) and (2, 7).
		A.	3	B.	5
		C.	4	D.	-3
		Hint
	4.	Find the value of x so the line that passes through (x, 6) and (10,-3) is parallel to the line that passes through (7, 2) and (6, 11)
		A.	1	B.	-9
		C.	9	D.	-71
		Hint
	5.	Find the slope of the line.
		A.	3	B.	1
		C.	0	D.	-1
		Hint