1.	If the product of the slopes of two lines is –1, then the lines are _______.
		A.	horizontal	B.	perpendicular
		C.	parallel	D.	vertical
		Hint
	2.	The graphs of the two equations y = 2x + 5 and are _______.
		A.	perpendicular	B.	parallel
		C.	neither parallel nor perpendicular	D.	the same line
		Hint
	3.	The graphs of the two equations y = 3 and x = –1 are________.
		A.	perpendicular	B.	neither parallel nor perpendicular
		C.	the same line	D.	parallel
		Hint
	4.	Which two equations have graphs that are parallel?
		A.	y = x + 2 -3 – y = (x + 2)
		B.	y = x + 2 4y = 12x + 13
		C.	y = 3x – 1 4y = 12x + 13
		D.	y = 3x – 1 -3 – y = (x + 2)
		Hint
	5.	Which line is perpendicular to y = -4x + 2 and passes through the point (4, 3)?
		A.	y = x + 2	B.	y = -x + 4
		C.	y = x –	D.	y = x +
		Hint