document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=681702>Question 681702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> perpendicular to the line 8x-7y= 77 containing the points (7,-12) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #422974 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=422974\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Starting with 8x-7y=77<BR>\n" );
document.write( "Isolate y<BR>\n" );
document.write( "8x-7y=77<BR>\n" );
document.write( "8x-7y+7y = 77+7y<BR>\n" );
document.write( "8x=77+7y<BR>\n" );
document.write( "8x - 77 = 77 + 7y - 77<BR>\n" );
document.write( "8x - 77 = 7y<BR>\n" );
document.write( "...<BR>\n" );
document.write( "7y = 8x - 77<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288%2F7%29x-11 ALIGN=MIDDLE  ALT=\"%288%2F7%29x-11\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "The slope is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F7 ALIGN=MIDDLE  ALT=\"8%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "A perpendicular line will have a negative inverse/reciprocal slope of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7%2F8 ALIGN=MIDDLE  ALT=\"-7%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "Using point(7,-12)<BR>\n" );
document.write( "y--12 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7%2F8 ALIGN=MIDDLE  ALT=\"-7%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" >(x-7)<BR>\n" );
document.write( "y+12 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-7%2F8%29x-%287%2F8%29%28-7%29 ALIGN=MIDDLE  ALT=\"%28-7%2F8%29x-%287%2F8%29%28-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-7%2F8%29x+%2B+49%2F8+-+12 ALIGN=MIDDLE  ALT=\"%28-7%2F8%29x+%2B+49%2F8+-+12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-7%2F8%29x+%2B+49%2F8+-+12%288%2F8%29 ALIGN=MIDDLE  ALT=\"%28-7%2F8%29x+%2B+49%2F8+-+12%288%2F8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-7%2F8%29x+%2B+49%2F8+-+96%2F8 ALIGN=MIDDLE  ALT=\"%28-7%2F8%29x+%2B+49%2F8+-+96%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28y+=+%28-7%2F8%29x+-+47%2F8%29 ALIGN=MIDDLE  ALT=\"highlight_green%28y+=+%28-7%2F8%29x+-+47%2F8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );