document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=722730>Question 722730</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I keep missing something?  I don't know the rules of how to do this problem?  My answers keep on being wrong with the negative/positive signs or relating to adding or subtracting?  Question: Write an equation of the line containing the given point and perpendicular to the given line.  (0,9); 2x + 9y = 8  Would like to see it step by step?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442838 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=442838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write an equation of the line containing the given point and perpendicular to the given line. <BR>\n" );
document.write( "(0,9); 2x + 9y = 8<BR>\n" );
document.write( "***<BR>\n" );
document.write( "Equation of a line: y=mx+b, m=slope, b=y-intercept<BR>\n" );
document.write( "2x+9y=8<BR>\n" );
document.write( "9y=-2x+8<BR>\n" );
document.write( "y=(-2/9)x+8<BR>\n" );
document.write( "slope,m=-(2/9)<BR>\n" );
document.write( "...<BR>\n" );
document.write( "slope of line perpendicular to given line=9/2 (negative reciprocal)<BR>\n" );
document.write( "Equation of perpendicular line: y=(9/2)x+b<BR>\n" );
document.write( "solving for b using coordinates of given point (0,9)<BR>\n" );
document.write( "9=(9/2)*0+b<BR>\n" );
document.write( "b=9<BR>\n" );
document.write( "Equation of perpendicular line: y=9x/2+9 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );