Parallel and Perpendicular Slopes

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Neither parallel nor perpendicular.

Front

What are the slopes of perpendicular lines?

Back

They are opposite reciprocals.

Front

Define 'slope' in the context of a linear equation.

Back

Slope is the measure of the steepness of a line, represented as the ratio of the rise over the run.

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What is the slope of a horizontal line?

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0

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What is the slope of a vertical line?

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Undefined

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Front

What is the relationship between the slopes of parallel lines?

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The slopes of parallel lines are equal.