Parallel and Perpendicular Lines

Parallel and Perpendicular Lines

Multiple Choice

True or False?

Two lines in the same plane that never intersect are parallel lines.

• True

• False

Multiple Choice

True or False?

Two distinct nonvertical lines are parallel if and only if they have the same slope.

• True

• False

Multiple Choice

True or False?

All distinct vertical lines are parallel.

• True

• False

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Two lines in the same plane that intersect to form right angles are ​ ​ ​

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parallel lines

perpendicular lines

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Nonvertical lines are perpendicular if and only if their slopes are ​

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negative reciprocals

equal