Question 468070: Is there a difference between no slope and an undefined slope of a straight line? If so,then what is it? Found 2 solutions by nerdybill, ewatrrr:Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website! "no slope" describes a horizontal line
whereaas
"undefined slope" describes a vertical line
Hi,
y = 2 Green Line has no slope, m = 0
x = 2 Blue Line has an undefined slope, x has zero change
(slope = (change in y)/(change in x)CANNOT divide by zero, therfore it's undefined