1.	Find the sum of and .
		A.		B.
		C.		D.
		Hint
	2.	Two vectors are opposites if they have ____.
		A.	the same magnitude and same direction	B.	different magnitudes and opposite directions
		C.	different magnitudes and the same direction	D.	the same magnitude and opposite directions
		Hint
	3.	The sum of two or more vectors is called _____.
		A.	a scalar	B.	the magnitude
		C.	the zero vector	D.	the resultant
		Hint
	4.	If both the initial and terminal points of a vector are at the origin, the vector is __________.
		A.	positive	B.	the zero vector
		C.	negative	D.	linearly independent
		Hint
	5.	|| = 14, || = 9, and . Find ||.
		A.	17	B.	126
		C.	23	D.	5
		Hint