document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=84821>Question 84821</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to determine whether the graphs of the equation are perpendicular, parallel, or neither.  4x+4y=-4 and 4x-4y=0.  I put perpendicular, is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #61104 by </B><A HREF=/tutors/aboutme.mpl?userid=tanimachatterjee><B>tanimachatterjee(60)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tanimachatterjee><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=61104\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> equations are 4x+4y =-4.....................(1)<BR>\n" );
document.write( "    and 4x-4y=0...........(2)<BR>\n" );
document.write( " so we can write the equation (1) as 4y = -4x -4<BR>\n" );
document.write( "                                  or y = -x -1               \r<BR>\n" );
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document.write( "       so the slope is -1 \r<BR>\n" );
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document.write( "    (2) we can write as 4y = 4x<BR>\n" );
document.write( "                      or y=x\r<BR>\n" );
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document.write( "      slope =1<BR>\n" );
document.write( "product of these 2 slope is (-1)(1) = -1<BR>\n" );
document.write( " so they r perpendicular to each other<BR>\n" );
document.write( "and your ans is ABSOLUTELY correct </SPAN>\n" );
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