document.write( "Question 179902: Match, which line is parallel, perpendicular, or neither to y=5x+2\r
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document.write( "y=5x+9
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document.write( "y=-5y+2
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document.write( "y=-5x-4 \n" );
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Algebra.Com's Answer #134801 by nerdybill(7384) You can put this solution on YOUR website! If \n" ); document.write( "slopes are equal -- parallel \n" ); document.write( "slopes are negative reciprocal -- perpendicular \n" ); document.write( "otherwise -- neither \n" ); document.write( ". \n" ); document.write( "Looking at: \n" ); document.write( "y=5x+2 \n" ); document.write( "This is in the form of: y = mx + b (slope-intercept form) \n" ); document.write( "where \n" ); document.write( "m is slope \n" ); document.write( "b is y-intercept \n" ); document.write( ". \n" ); document.write( "So, now we know that the slope of \n" ); document.write( "y=5x+2 \n" ); document.write( "is 5 \n" ); document.write( ". \n" ); document.write( "A line with a slope of 5 is parallel. \n" ); document.write( "A line with a slope of -1/5 will be perpendicular. \n" ); document.write( ". \n" ); document.write( "Evaluating against: \n" ); document.write( "y=5x+9 (same slope, must be parallel) \n" ); document.write( "y=-5y+2 (neither) \n" ); document.write( "y=-5x-4 (neither) \n" ); document.write( " |