document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=949874>Question 949874</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (A) write an equation for the line f that passes through (5,3) and has a slope of -8/9\r<BR>\n" );
document.write( "\n" );
document.write( "(B) what is the slope of a line perpendicular to line f?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #579932 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=579932\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> PROBLEM A: EQUATION<BR>\n" );
document.write( "y=mx+b slope=m, x=5, y=3, m=-8/9: solve for b<BR>\n" );
document.write( "3=8/9(5)+b<BR>\n" );
document.write( "3=(40/9)+b Subtract 40/9 from each side.<BR>\n" );
document.write( "3-4.444=b<BR>\n" );
document.write( "-1.444=b<BR>\n" );
document.write( "We now have m=-8/9 and b=-1.444<BR>\n" );
document.write( "ANSWER The equation for the line is f=-8/9(x)-1.444\r<BR>\n" );
document.write( "\n" );
document.write( "PROBLEM B: A perpendicular line has slope that is negative reciprocal of the slope of the line.  ANSWER A perpendicular line has a slope of 9/8.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );