Lesson: Geometry Challenging - 25

Slope

[Page 25 of 32]

Slope is the measure of the steepness of a line. Slope is normally described by the ratio of the "rise" divided by the "run" between two points on a line.

All lines have a slope that indicates the direction (rise or fall) and steepness of the line.

You may have learned that slope is defined as rise over run. This is a ratio, and we can write it as a fraction: . The change in y is the difference between two y-coordinates on the line, and the change in x is the difference between two x-coordinates on the line.

Lines with a positive slope move upward toward the right. Lines with a negative slope move downward toward the right.

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