document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=852003>Question 852003</A>: <I><SPAN STYLE=\"word-break: break-all;\"> identify the lines that are perpendicular: y=4; y=3x; x=4; y+2=3(x+7) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #513058 by </B><A HREF=/tutors/aboutme.mpl?userid=Seutip><B>Seutip(231)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Seutip><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=Seutip><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=513058\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To know the perpendicular lines for this equation we need to find the equation y=mx+b where m is the slope and the perpendicular equation to it is it's negative reciprocal which is -1/m.\r<BR>\n" );
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document.write( "In y=4, m is 0 therefore its perpendicular is undefined.\r<BR>\n" );
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document.write( "In y=3x, m is 3 therefore its perpendicular is y=-1/3x\r<BR>\n" );
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document.write( "In x=4, it is not a slope equation so its undefined.\r<BR>\n" );
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document.write( "In y+2=3(x+7) we need to further simplify to get y,\r<BR>\n" );
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document.write( "y+2=3x+21<BR>\n" );
document.write( "y=3x+29\r<BR>\n" );
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document.write( "m is 3 so the perpendicular is\r<BR>\n" );
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document.write( "y=-1/3x+29\r<BR>\n" );
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document.write( "HOPE THAT HELPS!\r<BR>\n" );
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