1.	State the slope of the line graphed below.
		A.		B.
		C.		D.
		Hint
	2.	When Kristin works 8 hours, she earns $60. When she works 20 hours, she earns $150. Write a linear equation that describes her earnings. Assume that the changes increase linearly.
		A.		B.
		C.		D.
		Hint
	3.	When two lines have different slopes, the graphs of the equations are _________
		A.	intersecting lines.	B.	the same line.
		C.	horizontal lines.	D.	parallel lines.
		Hint
	4.	Solve the system of equations by graphing.
		A.	no solution	B.	(0, 3)
		C.	infinitely many solutions	D.	(-1, 7)
		Hint
	5.	Use the substitution method to solve m - n = 7 and 3m + 2n = 6.
		A.	(4, -3)	B.
		C.	(-5, 2)	D.	(-3, -10)
		Hint
	6.	Solve the system of equations.
		A.		B.
		C.		D.
		Hint
	7.	Choose the graph that shows the solution to the system of inequalities and
		A.		B.
		C.		D.
		Hint
	8.	Which is not a point at which a maximum or minimum value of a function could occur for the feasible region?
		A.	(1, 5)	B.	(0, 3)
		C.	(-3, 6)	D.	(-3, 0)
		Hint
	9.	Selena has 31 days to complete her quilt for the county fair. The blue squares in the quilt can be sewn at a rate of 4 squares per day, and the white squares at a rate of 7 squares per day. The quilt can have up to 96 squares total. The blue fabric b costs about $0.80 per square and the white fabric w costs about $1.20 per square. Selena wants to keep costs at a minimum. Write an inequality that expresses the total number of squares to be sewn.
		A.		B.
		C.		D.
		Hint
	10.	Use substitution to solve the system of equations. 5x + 5y = -30 2x - y = 15
		A.	(21, 27)	B.	infinitely many solutions
		C.	no solution	D.	(3, -9)
		Hint
	11.	Which system of inequalities is graphed below?
		A.		B.
		C.		D.
		Hint
	12.	Line segment has endpoints A(-6, -3) and B(2, 1). Line segment has endpoints C(-4, 8) and D(3, -6). Is perpendicular to ? Why?
		A.	Yes, the slopes are negative reciprocals.
		B.	No, the lines are parallel.
		C.	Yes, the slopes are opposites.
		D.	No, the lines intersect but not at right angles.
		Hint
	13.	Write the slope-intercept form of an equation for a line perpendicular to the graph of y = -3x + 5 and passes through the x-intercept of that line.
		A.		B.
		C.		D.
		Hint
	14.	What is the y-intercept of the graph of the line with equation
		A.	-7	B.	7
		C.		D.
		Hint
	15.	Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form.
		A.		B.
		C.		D.
		Hint
	16.	Which is true for the following system of equations? 3x - y = 1 x + 2y = 7.
		A.	cannot be determined from information given	B.	y = x
		C.	y > x	D.	y < x
		Hint
	17.	Solve by the method of determinants.
		A.	(-0.2, 0.4)	B.	(-0.4, -0.2)
		C.	(-0.2, -0.4)	D.	(0.4, 0.2)
		Hint
	18.	Solve by the method of determinants.
		A.	(2, -1, -2)	B.	(-1, 1, -2)
		C.	(1, -1, 2)	D.	(2, -2, 1)
		Hint