document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=106934>Question 106934</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the quadratic function, whose graph passes through the points (1,3),(-2,18) and (3,13) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #77844 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=77844\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the general form is y=ax^2+bx+c ... substitute in the points, giving three equations with three unknowns (a,b,c)\r<BR>\n" );
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document.write( "3=a+b+c\r<BR>\n" );
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document.write( "18=4a-2b+c\r<BR>\n" );
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document.write( "13=9a+3b+c </SPAN>\n" );
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