1.	Determine the value of r so that the line through (r, 4) and (-7, 7) has a slope of .
		A.	-3	B.	-11
		C.	9	D.	3
		Hint
	2.	Determine the slope of the line graphed below.
		A.	0	B.
		C.		D.
		Hint
	3.	Which line has a slope of and passes through (2, -4)?
		A.
		B.
		C.
		D.
		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.	0	B.	undefined
		C.		D.
		Hint