1.	If two lines have the same slope, then they are _______.
		A.	parallel	B.	vertical
		C.	intersecting	D.	perpendicular
		Hint
	2.	If the product of the slopes of two lines is –1, then the lines are _______.
		A.	vertical	B.	horizontal
		C.	parallel	D.	perpendicular
		Hint
	3.	The graphs of the two equations y = 3 and x = –1 are________.
		A.	the same line	B.	neither parallel nor perpendicular
		C.	parallel	D.	perpendicular
		Hint
	4.	Which equation represents a graph that is perpendicular to the graph of and passes through the point at (–1, 1)?
		A.		B.
		C.		D.
		Hint
	5.	What would the slope of have to be for JKLM to be a trapezoid?
		A.	-	B.
		C.		D.	-
		Hint