1.	Which graph represents a function?
		A.		B.
		C.		D.
		Hint
	2.	If f(n) = -6n + 2, find f.
		A.	-3	B.	9
		C.	4	D.	8
		Hint
	3.	Find the domain of the function.
		A.	all real numbers except –1
		B.	all real numbers
		C.	all real numbers except 0
		D.	all real numbers except 1
		Hint
	4.	Find the domain of the function.y = –x + 3
		A.	all real numbers except 1	B.	all real numbers except –3
		C.	all real numbers	D.	all real numbers except 3
		Hint
	5.	A flare is shot up into the sky modeling the formula h(t) = 2 + 144t – 16t2, where h is in feet and t is in seconds. About how long was the flare in the air?
		A.	9 seconds	B.	5 seconds
		C.	4.5 seconds	D.	2.5 seconds
		Hint