document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64698>Question 64698</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/093979862x/algebrahomeworkh>An Incremental Development</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Find the equation of the line that passes through (3,-5) and is perpendicular to the line that passes through (7,-5) and (-2,-4) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #45255 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=45255\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> FIRST WE FIND THE SLOPE OF THE LINE THROUGH THE 2 POINTS THUS<BR>\n" );
document.write( "(Y2-Y1)/(X2-X1)<BR>\n" );
document.write( "(-4+5)/(-2-7)<BR>\n" );
document.write( "1/-9 IS THE SLOPE OF THE LINE THROUGH ((7,-5)(-2,-4)<BR>\n" );
document.write( "NOW TO IDENTIFY A LINE PERPENDICULAR TO THIS LINE IT HAS TO HAVE A SLOPE OF A NEGATIVE RECIPRICAL OF THIS SLOPE. THUS THE SL;OPE OF A LINE PERPENDICULAR TO THIS LINE THROUGH (3,-5) HAS A SLOPE OF 9. NOW WE SUBSTITUTE THESE X&Y POINTS IN THE FORMULA USING THE NEW SLOPE WE GET<BR>\n" );
document.write( "-5=9*3+b<BR>\n" );
document.write( "-5=27+b<BR>\n" );
document.write( "b=-5-27<BR>\n" );
document.write( "b=-32 THUS THUIS EQUATION IS<BR>\n" );
document.write( "Y=9X-32     </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );