Take any two points whose x coordinates are different.Suppose they are P = (Xp, Yp) and Q = (Xq, Yq)
then slope = (Yp - Yq)/(Xp - Xq) = (Yq - Yp)/(Xq - Xp), that is the change in the y coordinate between the two points ("rise") divided by the change in the x coordinate between the points - taken in the same order ("run").
how calculate slope mh to mh
Calculate slope as slope=(y2-y1)/(t2-t1).
slope = rise divided by run
the formula used to calculate a slope is: m=y2-y1/x2-x1
2 ordered pairs are needed to calculate slope.
You cannot: the slope is not defined.
slope=rise/run in other words: slope= y-axis/x-axis
You need two points before you can calculate the slope.
Points: (-3, -1) and (3, -2) Slope: -1/6
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Parallel lines have the same slope. So if you know the slope of a line in question, or you can calculate it, then you know the slope of any line parallel to that line.
To get the slope, calculate (difference of y-coordinates) / (difference of x-coordinates).