1.	Determine whether the number is rational or irrational.
		A.	both	B.	irrational
		C.	neither	D.	rational
		Hint
	2.	The graph of a linear function is _______.
		A.	a curved line	B.	a horizontal line only
		C.	None of these is correct	D.	a straight line
		Hint
	3.	If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after t seconds is h = 75t - 4.9t2. Find the height of the rocket after 3 seconds.
		A.	180.9 meters	B.	252.5 meters
		C.	221.6 meters	D.	130.4 meters
		Hint
	4.	The greatest power in a quadratic function is ______.
		A.	1	B.	4
		C.	3	D.	2
		Hint
	5.	Simplify
		A.		B.
		C.		D.
		Hint
	6.	Find the equation that has direct variation.
		A.	y = 0.8x + 9	B.	y = 4x
		C.	y = 5x + 1.3	D.	y = –3x – 1
		Hint
	7.	Describe the location of the line of symmetry of the graph of y = x2 – 2.
		A.	the horizontal axis	B.	the line y = x
		C.	there is no line of symmetry	D.	the vertical axis
		Hint
	8.	Describe how the graph of y = (x + 1)2 differs from the graph of y = x2.
		A.	the graph of y = (x + 1) 2 moved down 1 unit
		B.	the graph of y = (x + 1)2 moved 1 unit to the left
		C.	the graph of y = (x + 1)2 moved up 1 unit
		D.	the graph of y = (x+1)2 moved 1 unit to the right
		Hint
	9.	Two friends are playing catch with a baseball. The ball's flight can be modeled by the equation y = 1 + 0.6x – 0.08x2, in meters. What is the height of the ball at its highest point?
		A.	18.8 m	B.	3.78 m
		C.	2.13 m	D.	1 m
		Hint
	10.	What is the reciprocal of –20? Evaluate it in decimal form.
		A.	–0.02	B.	–0.50
		C.	–0.05	D.	–0.20
		Hint
	11.	Consider the equation . What happens to the value of y when x is divided by 4?
		A.	y is subtracted from 4
		B.	y is added to 4
		C.	y is multiplied by 4
		D.	y is divided by 4
		Hint
	12.	How does b affect graphs of equations in the form of ?
		A.	b affects the length of the graph
		B.	positive values of b move the graph to the left, negative values move it to the right
		C.	b affects the width of the graph
		D.	negative values of b move the graph to the left, positive values move it to the right
		Hint
	13.	What is a conjecture?
		A.	an educated guess that hasn't been proved yet
		B.	a ''shot in the dark'' guess that hasn't been proved yet
		C.	an educated guess that has been proved
		D.	a ''shot in the dark'' guess that has been proved
		Hint
	14.	Which differences are constant in a cubic equation?
		A.	first	B.	third
		C.	fourth	D.	second
		Hint
	15.	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 opposite the coefficient
		D.	the second difference is 2 times the coefficient
		Hint
	16.	How many counterexamples are needed to prove a conjecture wrong?
		A.	1	B.	2
		C.	3	D.	4
		Hint
	17.	Tell whether the statement is sometimes true, always true, or never true for positive values of n. If it is sometimes true, state for what value it is true. 4n = 6,561.
		A.	always true	B.	sometimes true, n = 7
		C.	never true	D.	sometimes true, n = 8
		Hint
	18.	Which equation represents exponential growth?
		A.	y = 250 × 0.25x	B.	y = 250 × 4x
		C.	y = 250 · x	D.	y = 250 × 0.4c
		Hint
	19.	Evaluate.
		A.	8	B.	–6
		C.	5	D.	6
		Hint
	20.	Evaluate.
		A.	–2	B.	–3
		C.	3	D.	2
		Hint