Slope Formula

Definition

The slope m of the line through the
points (x1, y1) and (x 2, y 2) is given by

Slope Formula
 

 

Example Problem

Find the slope of the line segment joining the points ( 1, - 4 ) and ( - 4, 2 ).

Solution

Label the points as x1 = 1, y1 = - 4, x2 = -4, and y2 = 2.

To find the slope m of the line segment joining the points, use the slope formula :
Example Solution

So, m = - 6/5.

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