Parallel & Perpendicular Lines Post Test

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What is the equation of a line in slope-intercept form?

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If two lines have the same slope, what can we say about them?

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If two lines have the same slope, they are parallel.

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If two lines have slopes that are opposite reciprocals, what can we say about them?

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If two lines have slopes that are opposite reciprocals, they are perpendicular.

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What is the relationship between the slopes of parallel lines?

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The slopes of parallel lines are equal.

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What is the relationship between the slopes of perpendicular lines?

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The slopes of perpendicular lines are opposite reciprocals.

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These lines are parallel.

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