Parallel & Perpenidcular Equations

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What are parallel lines?

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Parallel lines are lines in a plane that never meet. They have the same slope but different y-intercepts.

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CCSS.HSG.CO.A.1

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What are perpendicular lines?

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Perpendicular lines are lines that intersect at a right angle (90 degrees). The slopes of perpendicular lines are negative reciprocals of each other.

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

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How do you determine if two lines are parallel?

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CCSS.8.EE.B.6

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How do you determine if two lines are perpendicular?

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CCSS.8.EE.B.6

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What is the slope-intercept form of a line?

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CCSS.8.EE.B.6

CCSS.8.F.A.3

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CCSS.8.EE.B.5

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CCSS.8.EE.B.5

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If a line has a slope of 3, what is the slope of a line that is perpendicular to it?

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CCSS.8.EE.B.6

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