
David W. answered 03/09/19
Experienced Prof
First, there are several terms that mean SLOPE"
m in y = mx + b
rate of change
incline
grade
"rise over run"
slant
incline
. . .
Now use either point for P1 and the other point for P2 (you will get the same answer):
m = (y2 - y1) / (x2 - x1)
m = ( 14 - (-10) ) / ( (-6) - 8 ) = 24 / (-14) = -12/7