document.write( "Question 107531: determine if the following is parallel, perpindicular, or neither
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Algebra.Com's Answer #78311 by solver91311(24713)\"\" \"About 
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Given two lines with slopes m1 and m2, the lines are parallel if and only if \"m1+=+m2\" and the lines are perpendicular if and only if \"m1+=+-1%2Fm2\"\r
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