1.	Use the scatter plot to predict the mileage of an engine with 250 horsepower.
		A.	20	B.	12
		C.	25	D.	10
		Hint
	2.	What is the slope of the line through the points A(-3, 4) and B(2, -1)?
		A.	-3	B.	-1
		C.		D.	1
		Hint
	3.	The graph of a linear function is _______.
		A.	None of these is correct	B.	a curved line
		C.	a horizontal line only	D.	a straight line
		Hint
	4.	The graph of y = -4x2 - 1 is _____.
		A.	a straight line	B.	a circle
		C.	None of these is correct.	D.	a parabola
		Hint
	5.	What is the equation of the graph shown?
		A.	y = -x2 +2x - 1	B.	y = x2 + 2x + 1
		C.	y = x2 - 2x + 1	D.	y = -x2 - 2x - 1
		Hint
	6.	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
	7.	Find the equation that is nonlinear.
		A.	y = 14 + 6x	B.	y = 4y2
		C.	y = –3x – 1	D.	y = 8 – x
		Hint
	8.	Find the table that represents a graph with direct variation.
		A.
		B.
		C.
		D.
		Hint
	9.	Pam's mother gives Pam $20 each week for lunch to be bought at the school cafeteria. Lunches cost $4 per day. Draw a graph showing the amount Pam has left decreasing very slowly. Suppose you graph the time in days on the horizontal axis and the amount Pam has left on the vertical axis.
		A.		B.
		C.		D.
		Hint
	10.	What is the equation of a line that has a slope of –1 and passes through (–2, 0)?
		A.	y = –x – 1	B.	y = –x – 2
		C.	y = –x + 2	D.	y = –2x + 1
		Hint
	11.	Which way does the graph of y = –2x2 open?
		A.	down	B.	right
		C.	up	D.	left
		Hint
	12.	What is the lowest point on the graph of y = x2 + 2?
		A.	(0, 0)	B.	(0, –2)
		C.	(2, 0)	D.	(0, 2)
		Hint
	13.	How many diagonals are connected to each vertex for a 25-sided polygon?
		A.	20	B.	21
		C.	22	D.	25
		Hint
	14.	Which equation is in the same family as y = x2?
		A.	y = x2 – 3	B.	y = x3 – 3
		C.	y = 2x2 – 3	D.	y = 2x – 3
		Hint
	15.	Find the equation of the graph below.
		A.	y = (x - 3)2	B.	y = (x + 3)2
		C.	y = x2 + 3	D.	y = x2 – 3
		Hint
	16.	Find the cubic equation.
		A.	y = x2 + 5	B.	y = x(x3 + 1)
		C.	y = 3x	D.	y = 5x3 + 2x
		Hint
	17.	What is the new equation if the graph y = 2x3 – 6x2 is moved down 1 unit?
		A.	y = 2x3 – 5x2
		B.	y = x3 – 6x2
		C.	y = 2x3 – 6x2 + 1
		D.	y = 2x3 – 6x2 – 1
		Hint
	18.	How does b affect graphs of equations in the form of ?
		A.	positive values of b move the graph to the left, negative values move it to the right
		B.	b affects the length of the graph
		C.	negative values of b move the graph to the left, positive values move it to the right
		D.	b affects the width of the graph
		Hint
	19.	What type of relationship does the equation have if its second differences are constant?
		A.	linear	B.	quadratic
		C.	cubic	D.	constant
		Hint
	20.	What is the relationship between constant second differences and the coefficient of the equation?
		A.	the second difference is opposite 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 the same as the coefficient
		Hint