1.	Suppose p varies jointly as r and t. If p = 1 when r = -5 and t = 2, find t when p = 6 and r = 12.
		A.	-6.4	B.	-5.4
		C.	-5	D.	-7.2
		Hint
	2.	Solve .
		A.	0, 1	B.	-3, 1
		C.	1	D.	-3, -1
		Hint
	3.	Assuming that , determine whether is sometimes, always, or never true.
		A.	never	B.	cannot be determined from given information
		C.	sometimes	D.	always
		Hint
	4.	Simplify .
		A.		B.
		C.		D.
		Hint
	5.	Simplify .
		A.		B.
		C.		D.
		Hint
	6.	Simplify .
		A.		B.
		C.		D.
		Hint
	7.	Write the equation(s) of the vertical asymptote(s) of the function.
		A.	x = 3, x = –5	B.	x = –3, x = –5
		C.	x = 3	D.	x = –5
		Hint
	8.	What is the equation of the vertical asymptote in the figure?
		A.	x = 0	B.	x = 3
		C.	x =	D.	y = 0
		Hint
	9.	Suppose r varies jointly with p and q. If p increases and q decreases, what will happen to r?
		A.	Cannot be determined from given information.	B.	It stays the same.
		C.	It increases.	D.	It decreases.
		Hint
	10.	Which of the following is a rational function?
		A.		B.
		C.		D.
		Hint
	11.	Which type of function looks like a direct variation function when x > 0?
		A.	rational function	B.	absolute value function
		C.	quadratic function	D.	square root function
		Hint
	12.	Solve .
		A.	– < x <	B.	x >
		C.	x <	D.	0 < x <
		Hint