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Discussion: Roundtable
Topic: perpendicular lines


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Subject:   perpendicular lines
Author: lonnie
Date: Dec 10 2003
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I'm sorry to be so dumb but it's been too long since I've done any of this.  I'm
helping my son with his math .
line p:y=1/5x=2   q:y=5x-1/2   r:y--5x+3
Which of these lines are perpendicular?
please tell me why
Thanks.


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