document.write( "Question 104032: Determine which two equations represent parallel lines.
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document.write( "(a) y = 9x – 7 (b) y = –9x + 7 (c) y = 9x + 3 (d) y = -1/9x – 7\r
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document.write( "I have no idea even how to begin to figure this out.\r
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Algebra.Com's Answer #75705 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! parallel lines have the SAME slope ... the equations are in slope-intercept form\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so the two where the x terms have the same coefficient are the ones you want \n" ); document.write( " |