1.	If y varies directly as x and y = 21 when x = 5, find x when y = 42.
		A.	10	B.	21
		C.	4.2	D.	5
		Hint
	2.	Determine the value of r so that the line through (5, 2) and (7, r) has a slope of .
		A.	1	B.	3
		C.	6	D.	2
		Hint
	3.	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
	4.	What is implied when it is said that x and y have a negative correlation?
		A.	When the value of x increases, the value of y does not necessarily increase or decrease.
		B.	When the value of x is negative, the value of y negative.
		C.	When the value of x increases, the value of y increases.
		D.	When the value of x increases, the value of y decreases.
		Hint
	5.	A direct variation equation has (-2, 4) and (n, -8) as solutions. Find the missing value.
		A.	16	B.	4
		C.	1	D.	-2
		Hint
	6.	Which graph is the graph of
		A.
		B.
		C.
		D.
		Hint
	7.	The equation V = -32t + 256 and the graph below describe the velocity V in feet per second of a ball t seconds after is is shot into the air. What is the ball's velocity after seven seconds?
		A.	256 ft/s	B.	32 ft/s
		C.	0 ft/s	D.	480 ft/s
		Hint
	8.	Which equation has a graph perpendicular to the graph 3y = 2x - 9?
		A.	3x + 2y = 7	B.	y = 2x + 5
		C.		D.	2x + 3y = 4
		Hint
	9.	Find the slope of the line that passes through (5, -5) and (9, -5).
		A.		B.	undefined
		C.		D.	0
		Hint
	10.	Write an equation of a line that passes through (-3, 4) with slope -.
		A.		B.
		C.		D.
		Hint
	11.	A ticket service is selling tickets to a concert. An order of 4 tickets has a price of $63 and an order of 6 tickets has a price of $92. Write an equation to find the price of any amount of tickets.
		A.		B.
		C.		D.
		Hint
	12.	Write the point-slope form of an equation for a horizontal line that passes through (-15, 11).
		A.	y + 15 = 0	B.	y – 11 = 0
		C.	y + 11 = 0	D.	y – 15 = 0
		Hint
	13.	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
	14.	What is implied when it is said that x and y have a positive correlation?
		A.	When the value of x increases, the value of y decreases.
		B.	When the value of x decreases, the value of y does not necessarily increase or decrease.
		C.	When the value of x increases, the value of y increases.
		D.	When the value of x increases, the value of y does not necessarily increase or decrease.
		Hint