document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=827745>Question 827745</A>: <I><SPAN STYLE=\"word-break: break-all;\"> p= -(1,2)<BR>\n" );
document.write( "r= (2,4)<BR>\n" );
document.write( "what is the slope of pr?<BR>\n" );
document.write( "what is the slop of the line perpendicular to pr?<BR>\n" );
document.write( "pr=?\r<BR>\n" );
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document.write( "please help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #498852 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=498852\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is this?   p= -(1,2)<BR>\n" );
document.write( "Do you mean this:  p=(-1,-2) ?\r<BR>\n" );
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document.write( "Assuming so, slope is vertical change divided by horizontal change.<BR>\n" );
document.write( "Let this slope be m.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28-2-4%29%2F%28-1-2%29=3 ALIGN=MIDDLE  ALT=\"m=%28-2-4%29%2F%28-1-2%29=3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5Bo%5D ALIGN=MIDDLE  ALT=\"m%5Bo%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the slope for a line perpendicular to the line of slope m.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%2Am%5Bo%5D=-1 ALIGN=MIDDLE  ALT=\"m%2Am%5Bo%5D=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2Am%5Bo%5D=-1 ALIGN=MIDDLE  ALT=\"3%2Am%5Bo%5D=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5Bo%5D ALIGN=MIDDLE  ALT=\"m%5Bo%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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