CK-12 Geometry-Concepts

3.7. Slope in the Coordinate Plane http://www.ck12.org

3.7 Slope in the Coordinate Plane

Here you’ll review how to calculate the slope of a line given two points on the line.

What if you wanted to compare the steepness of two roofs? After completing this Concept, you’ll be able to
determine the steepness of lines in the coordinate plane using what you learned in Algebra I about slope.

Watch This

MEDIA

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URL: http://www.ck12.org/flx/render/embeddedobject/52436

CK-12 Foundation: Chapter3SlopeintheCoordinatePlaneA

MEDIA

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URL: http://www.ck12.org/flx/render/embeddedobject/60086

Khan Academy: The Slope of a Line

Guidance

Recall from Algebra I, the slope of the line between two points(x 1 ,y 1 )and(x 2 ,y 2 ) ism=((xy 22 −−yx^11 )).

DifferentTypesofSlope:

Example A

What is the slope of the line through (2, 2) and (4, 6)?