slope = (delta y) / (delta x). That's shorthand for: slope = (difference in the y-coordinates) / (difference in the x-coordinates). For two given points with coordinates (x1, y1) and (x2, y2), the slope is (y1 - y2) / (x1 - x2).
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......y2-y1 m= -------- ......x2-x1 m being slope ignore the periods they are nessicary
It was the French mathematician Rene Descartes who created the slope-intercept form of geometry.
Formula for slope m is (y2 - y1)/(x2 - x1).
Point Slope Formula: y-y1 = m(x - x1)
The formula for finding the slope of the line is this: m = (Y2-Y1)/(X2-X1)