document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=844414>Question 844414</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2x-1=y , 2y-4x=7<BR>\n" );
document.write( "  equations parallel to each other? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508772 by </B><A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><B>algebrahouse.com(1659)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=algebrahouse.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=508772\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Parallel lines have equal slopes.\r<BR>\n" );
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document.write( "Slope-intercept form is y = mx + b<BR>\n" );
document.write( "m is the slope<BR>\n" );
document.write( "b is the y-intercept\r<BR>\n" );
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document.write( "2x - y = 1<BR>\n" );
document.write( "-y = -2x + 1 {subtracted 2x from each side}<BR>\n" );
document.write( "y = 2x - 1 {divided each side by -1}<BR>\n" );
document.write( "slope is 2\r<BR>\n" );
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document.write( "2y - 4x = 7<BR>\n" );
document.write( "2y = 4x + 7  {added 4x to each side}<BR>\n" );
document.write( "y = 2x + (7/2) {divided each side by 2}<BR>\n" );
document.write( "slope is 2\r<BR>\n" );
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document.write( "Slopes are equal.  The lines are parallel.<BR>\n" );
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