document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=125622>Question 125622</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find an equation for the line:  through (1, 8) and perpendicular to y = 5/4x + 4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #92147 by </B><A HREF=/tutors/aboutme.mpl?userid=anne><B>anne(47)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=anne><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=92147\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ok<BR>\n" );
document.write( "so perpendicular lines have negative reciprocals so our slope is -4/5\r<BR>\n" );
document.write( "\n" );
document.write( "now we substiutute the points in the slope to find the y intercept\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "so\r<BR>\n" );
document.write( "\n" );
document.write( "y = m x +b<BR>\n" );
document.write( "8= -4/5(1) +b<BR>\n" );
document.write( "8= -4/5 +b<BR>\n" );
document.write( "8-4/5= -4/5+4/5 +b<BR>\n" );
document.write( "40-4/5 =b<BR>\n" );
document.write( "-36/5 =b\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "so our y intercept i -36/5\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "so our equation is y=-4/5x+-36/5\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Did this help?\r<BR>\n" );
document.write( "\n" );
document.write( "CHEERS<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );