1.	Find the magnitude of the vector from X(-4, 7) to Y(3, -4).
		A.		B.
		C.		D.
		Hint
	2.	Let and . Find .
		A.		B.
		C.		D.
		Hint
	3.	A vector that has a magnitude of one is called a _____.
		A.	scalar	B.	magnitude
		C.	unit vector	D.	resultant
		Hint
	4.	Find the magnitude of the vector .
		A.		B.
		C.		D.
		Hint
	5.	Let C = (4, 17), D. = (-11, 2). Write as a sum of unit vectors.
		A.		B.
		C.		D.
		Hint