1.	If y varies directly as x and y = 21 when x = 5, find x when y = 42.
		A.	4.2	B.	5
		C.	21	D.	10
		Hint
	2.	What is the slope of the line that passes through (8, 4) and (6, 7)?
		A.		B.
		C.		D.
		Hint
	3.	Determine the slope of the line that passes through (2, 2) and (5, 8).
		A.	2	B.
		C.		D.	-2
		Hint
	4.	Write the point-slope form of an equation of the line that contains , which is the hypotenuse of the right triangle.
		A.		B.
		C.		D.
		Hint
	5.	Which graph is the graph of
		A.
		B.
		C.
		D.
		Hint
	6.	Choose the slope-intercept form of the equation of the line that passes through (-2, 4) and is perpendicular to the graph of 2x + y = -20.
		A.	y = -2x	B.
		C.		D.	y = 2x + 8
		Hint
	7.	Suppose y varies directly as x, and y = -65 when x = -26. Write a direct variation equation that relates x and y.
		A.		B.
		C.		D.
		Hint
	8.	Graph 7x + 2y = -12.
		A.		B.
		C.		D.
		Hint
	9.	Write an equation of a line that passes through (-3, 4) with slope -.
		A.		B.
		C.		D.
		Hint
	10.	Which equation describes the line that contains the points (-1, -8) and (-9, -21)?
		A.		B.
		C.		D.
		Hint
	11.	Write the point-slope form of an equation for a horizontal line that passes through (-15, 11).
		A.	y + 11 = 0	B.	y – 15 = 0
		C.	y + 15 = 0	D.	y – 11 = 0
		Hint
	12.	Write the slope-intercept form of an equation for the line that passes through (-8, -1) and is parallel to the graph of
		A.		B.
		C.		D.
		Hint
	13.	Which scatter plot shows that x and y have a negative correlation?
		A.		B.
		C.		D.
		Hint
	14.	Which relationship would most likely have a negative correlation?
		A.	A person's age, and the address of the person.
		B.	The number of pizzas ordered, and the total price of the bill.
		C.	A person's height and the person's shoe size.
		D.	The number of miles driven, and the number of gallons of gas in the car.
		Hint