KynleaR24348 KynleaR24348

30-10-2022
Mathematics

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if two lines have slopes of 2/9 and 9/2, are they perpendicular?A. yesB. no

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ReighlynP658701 ReighlynP658701

30-10-2022

The lines are perpendicular if their slopes are negative reciprocal of the other.

Since 9/2 is just a reciprocal and not the NEGATIVE reciprocal of 2/9, the lines are NOT perpendicular.

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