1.	Solve the system of equations by elimination. 2x + y - z = 3 x + y + z = 5 x - 2y + z = 2
		A.	(1, 2, 1)	B.	(1, 1, 2)
		C.	(2, 1, 2)	D.	(2, 2, 1)
		Hint
	2.
		A.		B.	The product doesn't exist.
		C.		D.
		Hint
	3.	Use the function P(x, y) = 40x + 60y to determine how many of each item should be produced in order to maximize profit.
		A.	(100, 800)	B.	(300, 500)
		C.	(500, 400)	D.	(100, 400)
		Hint
	4.	Describe how the graphs of f(x) = |2x| and g(x) = -|2x| are related.
		A.	The graph of g(x) is a reflection of the graph of f(x) over the x-axis.	B.	The graph of g(x) is a reflection of the graph of f(x) over the x- and y-axes.
		C.	None are true.	D.	The graph of g(x) is a reflection of the graph of f(x) over the y-axis.
		Hint
	5.	Which is the graph of f(x) = x2 - 3 and its inverse?
		A.		B.
		C.		D.
		Hint
	6.	When is the function f(x) = continuous at x = 2?
		A.	not enough information is given	B.	always
		C.	sometimes	D.	never
		Hint
	7.	Determine the slant asymptote for f(x) = .
		A.	y = -2x +3	B.	y = 3x + 2
		C.	y = 2x + 3	D.	y = 3x - 2
		Hint
	8.	State the number of complex roots of the equation x4 - 3x2 - 4 = 0.
		A.	3	B.	1
		C.	2	D.	4
		Hint
	9.	In a polynomial equation, if there is one change in sign of the coefficients of the terms, ____.
		A.	there could be one or three positive real zeros	B.	there is exactly one positive real zero
		C.	none of the above is correct	D.	there is one imaginary root
		Hint
	10.	Use the Upper Bound Theorem to find an integral upper bound and the Lower Bound Theorem to find an integral lower bound of the zeros of the function f(x) = x3 - 2x2 - x + 6. All real zeros of f(x) can be found in the interval.
		A.	1 x 2	B.	2 x 3
		C.	-3 x -2	D.	-2 x 3
		Hint
	11.	Use a graphing calculator to write a polynomial function to model the set of data.
		A.	0.9x + 1.3	B.	1.3x - 0.9
		C.	1.3x + 0.9	D.	0.9x - 1.3
		Hint
	12.	Determine the number of possible solutions for , given B = 100°, b = 7, and c = 9.
		A.	none	B.	two
		C.	one	D.	three
		Hint
	13.	Determine the number of solutions for , given a = 2, b = 3, and c = 6.
		A.	one	B.	three
		C.	none	D.	two
		Hint
	14.	In given a = 22, b = 39 and c = 19, find B.
		A.	about 54.0°	B.	about 36.0°
		C.	about 144.0°	D.	about 126.0°
		Hint
	15.	Write the equation of the line that is parallel to 2x - 3y - 15 = 0 and that passes through the point (3,4).
		A.	2x - 3y + 6 = 0	B.	2x + 5 - 3 = 0
		C.	2x + 3y + 6 = 0	D.	2x - 2y + 6 = 0
		Hint
	16.	Write the equation of the line perpendicular to 5y + 3x - 10 = 0 and that passes through the point (3,1).
		A.	5x - 3y - 12 = 0	B.	5x + 3y - 12 = 0
		C.	3x + 5y - 50 = 0	D.	5x - 3y - 4 = 0
		Hint
	17.	Determine the equation of the perpendicular bisector of the line segment with endpoints (1,5) and (-6, 3).
		A.	2x + 7y + 23 = 0	B.	14x + 4y - 19 = 0
		C.	14x + 4y + 19 = 0	D.	2x + 7y - 23 = 0
		Hint
	18.	Which is the graph of the inequality y > |2x + 1| ?
		A.		B.
		C.		D.
		Hint
	19.	Complete the graph so it is symmetric about the origin.
		A.		B.
		C.		D.
		Hint
	20.	Determine the intervals on which the function f(x) = x3 + x2 + x is increasing and the intervals on which the function is decreasing.
		A.	increasing for x < 0 and decreasing for x > 0
		B.	increasing for all x
		C.	increasing for x < 0 and x > 0
		D.	decreasing for all x
		Hint