document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=184557>Question 184557</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm not sure about this.\r<BR>\n" );
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document.write( "Determine whether the pair of lines is parallel, perpendicular, or neither.\r<BR>\n" );
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document.write( "x-4y=-2<BR>\n" );
document.write( "y=9x-4\r<BR>\n" );
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document.write( "Choose the correct answer below.\r<BR>\n" );
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document.write( "A. The two lines are neither parallel nor perpendicular<BR>\n" );
document.write( "B. More information is needed.<BR>\n" );
document.write( "C. The two lines are parallel.<BR>\n" );
document.write( "D. The two lines are perpendicular. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #138528 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=138528\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-4y=-2<BR>\n" );
document.write( "-4y=-x-2<BR>\n" );
document.write( "y=-x/-4-2/-4<BR>\n" );
document.write( "y=x/4+1/2 (red line) slope=1/4<BR>\n" );
document.write( "y=9x-4 (green line) slope=9<BR>\n" );
document.write( "These 2 lines are neither parallel nor perpendicular.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x%2F4+%2B1%2F2%2C+9x+-4%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x%2F4+%2B1%2F2%2C+9x+-4%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions x/4 +1/2 and 9x -4).  </SPAN>\n" );
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