Points for example: (4, 8) and (2, 4)
Slope: (8-4)/(4-2) = 2
The slope formula is m = (y2 - y1) / (x2 - x1) where the 2 points are (x1,y1) and (x2,y2)
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The slope of a line that passes through two points is (difference in y) / (difference in x).
Not always. For example, try to find the slope of the line that passes through the points (3, 4) and (2, 3).
No
Points: (2, 3) and (2, 9)Slope: 0The line is vertical and parallel to the y axis
you look at the line and see if there are any direct points on the line the slope formula