document.write( "Question 466976: Post your 50-word response to the following: How can you determine if two lines are perpendicular \n" ); document.write( "

Algebra.Com's Answer #320372 by hhlebiczki(1) $\"\"$ $\"About$

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Two lines are perpendicular if, when multiplied, the slopes equal -1. In other words, the slopes are negative reciprocals. \n" ); document.write( "

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