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Published byAlexandrina Golden Modified over 8 years ago

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y x y=x-2 y=x+2 Slopes are the same

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y x y=2x-4 y=2x+1 Slopes are the same

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Why is This line is parallel to the original ?

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y x y= 2x+1 y= -1/2x+1 Slopes are NEGATIVE reciprocals

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y x y= 3x+1 y= -1/3x+1 Slopes are NEGATIVE reciprocals

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Find the equation of the line that is perpendicular to the original ?

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Find the equation of the line that is perpendicular to the original ?

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Find the equation of the line that is perpendicular to the original ?

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#1 If lines are parallel Their slopes are equal #2 If lines are perpendicular Their slopes are Negative reciprocals

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