document.write( "Question 273604: State which two equations represent perpendicular lines:
\n" ); document.write( "a: y = (2/3)x - 8
\n" ); document.write( "b: y = (-2/3)x - 6
\n" ); document.write( "c: y = (2/3)x - 6
\n" ); document.write( "d: y = (3/2)x - 6
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Algebra.Com's Answer #199868 by checkley77(12844) $\"\"$ $\"About$

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b) & d) are perpendicular because the slopes (-2/3 & 3/2) are negative reciprocals of the other. \n" ); document.write( "

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