Slope of a line
Slope from a graph is a free educational video by Khan Academy.It helps students in grades 8 practice the following standards 8.EE.B.6.
1. 8.EE.B.6 : Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y =mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b..
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