document.write( "Question 82255: I am supposed to determine which two equations represent perpendicular lines:\r
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document.write( "(a) y=5/3x-3
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document.write( "(b) y=3x-5/3
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document.write( "(c) y=-1/3x+5/3
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document.write( "(d) y=1/3>5/3x\r
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document.write( "Can someone please help me with this ;0/ \n" );
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Algebra.Com's Answer #58931 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Remember that perpendicular lines have slopes the are the negative reciprocal of each other. \n" ); document.write( "You can use this fact to determine which tow equations represent perpendicular lines. \n" ); document.write( "Your equations (with the exception of (d)) are in the slope-intercept form: y = mx+b, so this make the job easier.\r \n" ); document.write( "\n" ); document.write( "The slope in equation (b) is m = 3. \n" ); document.write( "The slope in equation (c) is m = -1/3 \n" ); document.write( "These slopes are the negative reciprocal of each other, so the lines represented by these two equations are perpendicular. \n" ); document.write( " |