Perpendicular Lines

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

How do you determine if two lines are perpendicular using their slopes?

Back

Two lines are perpendicular if the product of their slopes is -1. This means that the slopes are opposite reciprocals.

Front

What is the slope of a line perpendicular to a line with a slope of 3?

Back

Front

Back

'm' represents the slope of the line.

Front

What is the slope of a line perpendicular to a line with a slope of -4?

Back

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Back

Front

What is the relationship between the slopes of two perpendicular lines?

Back

The slopes of two perpendicular lines are opposite reciprocals.

Front

If a line has a slope of 0, what can be said about its orientation?

Back

A line with a slope of 0 is horizontal.

Front

If a line has an undefined slope, what can be said about its orientation?

Back

A line with an undefined slope is vertical.

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