1.	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.		B.	y = 4x + 3
		C.	y = -2x + 1	D.	y = 2x
		Hint
	2.	Which pair of lines graphed below are parallel?
		A.	k and n	B.	k and m
		C.	l and m	D.	l and n
		Hint
	3.	Use the scatter plot to predict the mileage of an engine with 250 horsepower.
		A.	20	B.	12
		C.	10	D.	25
		Hint
	4.	The graph of a linear function is _______.
		A.	a curved line	B.	a straight line
		C.	None of these is correct	D.	a horizontal line only
		Hint
	5.	What is the equation of the graph shown?
		A.	f(x) = 2x2 - 2x + 1
		B.	f(x) = 2x2 + 2x + 1
		C.	f(x) = -2x2 + 2x - 1
		D.	f(x) = -2x2 + 2x + 1
		Hint
	6.	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
	7.	Find the equation that has direct variation.
		A.	y = 4x	B.	y = 5x + 1.3
		C.	y = 0.8x + 9	D.	y = –3x – 1
		Hint
	8.	Find the graph that does not have direct variation.
		A.		B.
		C.		D.
		Hint
	9.	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 bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second.
		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
	10.	Find the graph that is nonlinear.
		A.		B.
		C.		D.
		Hint
	11.	Which three points are collinear?
		A.	(4, –3), (2, –2), (–4, 1)
		B.	(–1, 1), (2, 3), (5, 2)
		C.	(3, 1), (4, 0), (–1, 2)
		D.	(–5, –3), (–2, 3), (2, –4)
		Hint
	12.	How many diagonals does a 25-sided polygon have?
		A.	275	B.	25
		C.	550	D.	300
		Hint
	13.	Find a quadratic equation for the table.
		A.	y = 5x2 + 1	B.	y = 5x2 – 1
		C.	y = 5x2 – 2	D.	y = x2 – 5
		Hint
	14.	Find the equation of the graph below.
		A.	y = (x + 3)2	B.	y = x2 + 3
		C.	y = x2 – 3	D.	y = (x - 3)2
		Hint
	15.	Find the cubic equation.
		A.	y = x(x3 + 1)	B.	y = 5x3 + 2x
		C.	y = x2 + 5	D.	y = 3x
		Hint
	16.	Find the equation of the following graph.
		A.	y =	B.	y = x3
		C.	y =	D.	y = x2
		Hint
	17.	In the relationship , why is y inversely proportional to x?
		A.	the relationship is undefined at x = 0
		B.	8 is divided into y
		C.	8 is divided into x
		D.	the product of xy is a constant, 8
		Hint
	18.	How does a affect graphs of equations in the form of ?
		A.	negative values of a move the graph to the left, positive values move it to the right
		B.	a affects the width of the graph
		C.	positive values of a move the graph to the left, negative values move it to the right
		D.	a affects the length of the graph
		Hint
	19.	What is the relationship between constant second differences and the coefficient of the equation?
		A.	the second difference is the same as the coefficient
		B.	the second difference is –2 times the coefficient
		C.	the second difference is 2 times the coefficient
		D.	the second difference is opposite the coefficient
		Hint
	20.	Find the values for m and n which the conjecture (m – n)2 = m2 – n2 is false.
		A.	m = 1, n = 2	B.	m = 1, n = 0
		C.	m = 1, n = 1	D.	m = –2, n = 0
		Hint