document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=577703>Question 577703</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the equation of the line.<BR>\n" );
document.write( "Through (-2,-15); Perpendicular to y=10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #370395 by </B><A HREF=/tutors/aboutme.mpl?userid=dfrazzetto><B>dfrazzetto(283)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dfrazzetto><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=dfrazzetto><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=370395\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To find equation in the form y=mx + b, we need the slope first\r<BR>\n" );
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document.write( "y=10 is a horizontal line, thus is has slope zero\r<BR>\n" );
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document.write( "a perpendicular line will have infinite slope, in other words, be a vertical line.\r<BR>\n" );
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document.write( "vertical lines are of the form x=c, where c is some constant (a number)\r<BR>\n" );
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document.write( "In this case, it is simply x=-2, which is a vertical line that goes through x=-2 and all real y values, including -15.\r<BR>\n" );
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document.write( "x=-2<BR>\n" );
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