Posted by SchuRonda on .
Find the slope, if it exists, of the line containing the pair of points.
(6.8,11.8) and (6.4,7.6)

math 
MathMate,
The slope between two points P1(x1,y1) and P2(x2,y2) is given by
m=(y2y1)/(x2x1) if (x2x1)≠0
If (x2x1)=0, the slope does not exist (infinite).