1.	Determine the slope of the line that passes through (2, 2) and (5, 8).
		A.	2	B.
		C.	-2	D.
		Hint
	2.	Graph the equation
		A.
		B.
		C.
		D.
		Hint
	3.	Which characteristic describes a graph that is linear and has direct variation.
		A.	The equation has the form y = mx.
		B.	The equation has the form y = mx + b.
		C.	Variables x and y are not proportional.
		D.	The graph does not pass through (0, 0).
		Hint
	4.	Find the equation that has direct variation.
		A.	y = 4x	B.	y = –3x – 1
		C.	y = 0.8x + 9	D.	y = 5x + 1.3
		Hint
	5.	Find the graph that does not have direct variation.
		A.		B.
		C.		D.
		Hint
	6.	Find the equation that contains a decreasing linear relationship.
		A.	y = 4x – 3	B.	y = 10 + x
		C.	y = 5 – 6x	D.	y = 12+ 2x
		Hint
	7.	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.	A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second.
		C.	The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours.
		D.	A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second.
		Hint
	8.	Find the graph that is nonlinear.
		A.		B.
		C.		D.
		Hint
	9.	Determine whether this table represents a linear relationship. Then give the rule.
		A.	linear, t = 2s – 1	B.	not linear
		C.	linear, t = s – 2	D.	linear, t = 5 + 6s
		Hint
	10.	Use the differences method to analyze the pattern in the table. Find the two missing outputs.
		A.	89, 97	B.	90, 98
		C.	83, 91	D.	86, 94
		Hint