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the lines shown below are perpendicular. if the green line has a slope of -1/9, what is the slope of the red line?
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the lines shown below are perpendicular. if the green line has a slope of -1/9, what is the slope of the red line?

User John McGehee
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1 Answer

4 votes
The other line would have a negative reciprocal slope so it would be 9.
User Mrpbody
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