Question 720570
x1		y1	x2	y2				
-  2/ 3		  1/ 2	  3/ 4	 7/8				
								
slope m =		(y2-y1)/(x2-x1)						
(	 7/8	-	 1/2	)/(	 3/4	-	- 2/3	)
(	 3/8	/	1.42	)  				
m=		 1/4