document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37187>Question 37187</A>: <I><SPAN STYLE=\"word-break: break-all;\"> could you explane to me why i got this marked wrong and how i can correct it? \r<BR>\n" );
document.write( "\n" );
document.write( "here's what they asked: \"find the equation of a line that passes through the origin and the following points.\"  (2,-2)\r<BR>\n" );
document.write( "\n" );
document.write( "my answer: y-(-2)=0(x-2)\r<BR>\n" );
document.write( "\n" );
document.write( ":) thanx a bunch!!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #22872 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=22872\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To use the point-slope form, y - y1 = m(x - x1), you need a point AND the slope.  The slope needs to be found in the usual way...m = (y2 - y1)/(x2 - x1) = (-2 - 0)/(2 - 0) = -1.  NOW plug into the form above and get y - (-2) = (-1)(x - 2)  and finally y = -x. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );