You can put this solution on YOUR website! If given two points on a line you can find the slope of that line using this formula:
So we are given two points (6,6) and (5,6)
First thing we should notice is that these points have the same y coordinate.
So the line that contains these two points is a horizontal line. And horizontal lines always have a slope of zero.
Lets go ahead and put the points into the formula and see what happens.
Sure enough the slope is zero.
