1.	Determine the slope of the line graphed below.
		A.		B.
		C.		D.	0
		Hint
	2.	Determine the slope of the line that passes through (2, 2) and (5, 8).
		A.	2	B.
		C.		D.	-2
		Hint
	3.	What is the slope of in parallelogram ABCD?
		A.		B.
		C.		D.
		Hint
	4.	Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4x - 2y = 6?
		A.	y = 4x + 3	B.	y = -2x + 1
		C.	y = 2x	D.
		Hint
	5.	Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation does not have a graph that is a line parallel to the other three?
		A.
		B.
		C.	3x + 4y = -16
		D.	8y = - 6x
		Hint
	6.	Use the scatter plot to predict the mileage of an engine with 250 horsepower.
		A.	25	B.	12
		C.	10	D.	20
		Hint
	7.	What is the slope of the line through the points A(-3, 4) and B(2, -1)?
		A.	-1	B.	1
		C.	-3	D.
		Hint
	8.	Determine the slope of the line containing the points P(-7, -8) and Q(3, 0).
		A.	2	B.
		C.	-2	D.
		Hint
	9.	Find the equation that has direct variation.
		A.	y = –3x – 1	B.	y = 0.8x + 9
		C.	y = 4x	D.	y = 5x + 1.3
		Hint
	10.	Which characteristic describes a graph that is linear and has direct variation.
		A.	Variables x and y are not proportional.
		B.	The equation has the form y = mx + b.
		C.	The graph does not pass through (0, 0).
		D.	The equation has the form y = mx.
		Hint
	11.	Find the graph that does not have direct variation.
		A.		B.
		C.		D.
		Hint
	12.	Find the equation that contains a decreasing linear relationship.
		A.	y = 10 + x	B.	y = 4x – 3
		C.	y = 5 – 6x	D.	y = 12+ 2x
		Hint
	13.	Find the situation that involves a decreasing linear relationship and has direct variation.
		A.	An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport.
		B.	The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours.
		C.	A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second.
		D.	A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second.
		Hint
	14.	Find the graph that is nonlinear.
		A.		B.
		C.		D.
		Hint
	15.	Find the table that represents a graph with direct variation.
		A.
		B.
		C.
		D.
		Hint
	16.	Michael just got a job mowing his elderly neighbor's lawn paying him $10 each week. Draw a graph showing the amount he receives is increasing very rapidly. Suppose you graph the time in weeks on the horizontal axis and the amount Michael receives on the vertical axis.
		A.		B.
		C.		D.
		Hint
	17.	What is the equation of a line that has a slope of –1 and passes through (–2, 0)?
		A.	y = –x + 2	B.	y = –2x + 1
		C.	y = –x – 2	D.	y = –x – 1
		Hint
	18.	Which line is parallel to the line listed below?
		A.
		B.
		C.	y = 2x - 5
		D.
		Hint
	19.	Which three points are collinear?
		A.	(–5, –3), (–2, 3), (2, –4)
		B.	(–1, 1), (2, 3), (5, 2)
		C.	(3, 1), (4, 0), (–1, 2)
		D.	(4, –3), (2, –2), (–4, 1)
		Hint
	20.	Which three points are collinear?
		A.	(–5, 2), (1, 1), (4, 4)
		B.	(3, –1), (2, 5), (2, –3)
		C.	(–4, 4), (0, –4), (–1, –2)
		D.	(1, 2), (–3, –2), (–2, –4)
		Hint