1.	Find the magnitude of the vector from X(-4, 7) to Y(3, -4).
		A.		B.
		C.		D.
		Hint
	2.	Let . Find .
		A.		B.
		C.		D.
		Hint
	3.	A vector that has a magnitude of one is called a _____.
		A.	magnitude	B.	unit vector
		C.	resultant	D.	scalar
		Hint
	4.	Find the magnitude of the vector .
		A.		B.
		C.		D.
		Hint
	5.	If , then = _______.
		A.		B.
		C.		D.
		Hint