document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=355251>Question 355251</A>: <I><SPAN STYLE=\"word-break: break-all;\"> show that A(-3,1) B(1,2) C(0,1) D(-4,-2) are the vertices of a parallelogram  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #253820 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=253820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C-5%2C5%2C-5%2C5%2Ccircle%28-3%2C1%2C0.3%29%2Ccircle%281%2C2%2C0.3%29%2Ccircle%280%2C1%2C0.3%29%2Ccircle%28-4%2C-2%2C0.3%29%2Cline%28-3%2C1%2C1%2C2%29%2Cline%281%2C2%2C0%2C1%29%2Cline%280%2C1%2C-4%2C-2%29%2Cline%28-4%2C-2%2C-3%2C1%29%2Cgrid%281%29%2Cgraph%28300%2C300%2C-5%2C5%2C-5%2C5%2C0%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Check your points, they are not vertices of a parallelogram.<BR>\n" );
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document.write( "(0,-1) would work.<BR>\n" );
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