1.	Describe the graph.
		A.	not a relation but a function	B.	relation but not function
		C.	neither a relation nor a function	D.	relation and function
		Hint
	2.	Evaluate the function f(x) = 2x3 - 6x + 1 for f(-2).
		A.	-3	B.	5
		C.	37	D.	-35
		Hint
	3.	Using the equation y = 50x + 50, predict y when x = 6.
		A.	400	B.	350
		C.	300	D.	250
		Hint
	4.	Determine whether the graphs of the pair of equations 2x + 3y = 6 and 4x + 6y = 5 are parallel, coinciding, or neither.
		A.	parallel	B.	coinciding
		C.	neither	D.	all are correct
		Hint
	5.	Determine whether the graphs of the pair of equations 3x - 2y = 7 and 3x + 2y = 7 are parallel, coinciding, or neither.
		A.	coinciding	B.	all are correct
		C.	parallel	D.	neither
		Hint
	6.	Which is the best prediction equation for the data?
		A.	y = 5x - 19,950	B.	y = 10x - 19,950
		C.	y = 25x - 19,950	D.	y = 20x - 19,950
		Hint
	7.	Which is a graph of f(x) = |3x| - 1?
		A.		B.
		C.		D.
		Hint
	8.	The stated weight of the box of soap is 8.3 ounces. The company randomly chooses boxes to test to see whether their equipment is dispensing the right amount of product. If the discrepancy is more than 0.15 ounce, the production line is stopped for adjustments. Identify the type of function that models this situation.
		A.	a straight line	B.	greatest integer function
		C.	absolute value function	D.	step function
		Hint
	9.	Solve the system of equations x = 4 and 3x - 4y = 12 by graphing.
		A.		B.
		C.		D.
		Hint
	10.	Find the values of x and y for which the matrix equation is true.
		A.	x = -3, y = -1	B.	x = -1, y = -3
		C.	x = 1, y = -3	D.	x = -3, y = 1
		Hint
	11.	Suppose a figure is animated to spin around a certain point. If the image has key points as A(2, 1), B(3, 5) and C(6, 2), and the rotation is about the origin, find the location of these points at a 270° counterclockwise rotation.
		A.	A'(1, -2), B'(-5, 3), C'(-2, 6)	B.	A'(-2, -1), B'(-3, -5), C'(-6, -2)
		C.	A'(-1, 2), B'(-5, 3), C'(-2, 6)	D.	A'(1, -2), B'(5, -3), C'(2, -6)
		Hint
	12.	Find the value of .
		A.	-17	B.	-3
		C.	3	D.	17
		Hint
	13.	Which function does not have a zero?
		A.	f(x) = x - 5	B.	f(x) = 3x + 5
		C.	f(x) = -5	D.	f(x) = –5x +3
		Hint
	14.	Find a linear equation that can be used as a model for the data shown.
		A.		B.
		C.		D.
		Hint
	15.	Determine whether 3x - 5y + 1 = 0 and 6x - 10y + 2 = 0 are parallel, coinciding, or neither.
		A.	all are correct	B.	perpendicular
		C.	parallel	D.	coinciding
		Hint
	16.	Graph the equation
		A.		B.
		C.		D.
		Hint
	17.	Find the value of the determinant .
		A.	-29	B.	-25
		C.	-3	D.	-43
		Hint
	18.	Find the inverse of .
		A.	does not exist	B.
		C.	0	D.
		Hint
	19.	Find the inverse of .
		A.		B.
		C.		D.
		Hint
	20.	Solve this problem using matrix equations.How many liters of 0.25 solution and 0.40 solution should be combined to make 10 liters of 0.35 solution?
		A.	4.5 L of the 0.25 solution and 5.5 L of the 0.40 solution.
		B.	2.5 L of the 0.25 solution and 7.5 L of the 0.40 solution.
		C.	3.33 L of the 0.25 solution and 6.66 L of the 0.40 solution.
		D.	6.66 L of the 0.25 solution and 3.33 L of the 0.40 solution.
		Hint