document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=970369>Question 970369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which best describes the relationship between the lines with the equations 9x-2y=5 and -9x+9y=9?<BR>\n" );
document.write( "[A] parallel<BR>\n" );
document.write( "[B] perpendicular <BR>\n" );
document.write( "[C] neither parallel nor perpendicular <BR>\n" );
document.write( "[D] same line    </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #593009 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=593009\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Put this in form of y on left and whatever x will be on right.  That will get you very close to what you need.\r<BR>\n" );
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document.write( "9x-2y=5<BR>\n" );
document.write( "subtract 9x both sides<BR>\n" );
document.write( "-2y=-9x+5<BR>\n" );
document.write( "Divide by (-2)<BR>\n" );
document.write( "y=  -(9/2)  x  - 5/(2)  don't worry about the constant.  Find the slope.   It is 9/2\r<BR>\n" );
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document.write( "Second equation<BR>\n" );
document.write( "-9x +9y =9<BR>\n" );
document.write( "Add 9x to both sides\r<BR>\n" );
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document.write( "9y=9x +9<BR>\n" );
document.write( "divide by 9<BR>\n" );
document.write( "y=x + 1 <BR>\n" );
document.write( "slope is 1\r<BR>\n" );
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document.write( "Slopes different, lines intersect.<BR>\n" );
document.write( "Slopes not negative reciprocal (would need -2/9 or -1 for both)  Not perpendicular.\r<BR>\n" );
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document.write( "Neither parallel nor perpendicular\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%2B1%2C-9x%2F2-5%2F2%29 ALIGN=MIDDLE  ALT=\"+graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%2B1%2C-9x%2F2-5%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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