1.	What is the slope of the line that passes through (8, 4) and (6, 7)?
		A.		B.
		C.		D.
		Hint
	2.	Determine the value of r so that the line through (5, 2) and (7, r) has a slope of .
		A.	2	B.	6
		C.	1	D.	3
		Hint
	3.	Determine the value of r so that the line through (r, 4) and (-7, 7) has a slope of .
		A.	-11	B.	3
		C.	9	D.	-3
		Hint
	4.	What is the slope of in parallelogram ABCD?
		A.		B.
		C.		D.
		Hint
	5.	Find the slope of the line that passes through (5, -5) and (9, -5).
		A.	undefined	B.
		C.	0	D.
		Hint