document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64639>Question 64639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find an equation in the form y=ax^2+bx+c whose graph passes through the points (-1,-2), (1,4), (2,13) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #46236 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=46236\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> SEE THE FOLLOWING EXAMPLE AND TRY.IF STILL IN<BR>\n" );
document.write( "DIFFICULTY PLEASE COME BACK<BR>\n" );
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document.write( "Find an equation of the form y = ax^2 + bx + c whose<BR>\n" );
document.write( "graph passes through the points (1,-2) (2,-1), and<BR>\n" );
document.write( "(3,4).<BR>\n" );
document.write( "SUBSTITUTING THE VALUE OF X FROM POINTS(X,Y) IN THE<BR>\n" );
document.write( "GIVEN EQN. FOR Y WE GET<BR>\n" );
document.write( "A+B+C=-2...................1<BR>\n" );
document.write( "4A+2B+C=-1.......................2<BR>\n" );
document.write( "9A+3B+C=4............3<BR>\n" );
document.write( "EQN.2-EQN.1<BR>\n" );
document.write( "3A+B=1................4<BR>\n" );
document.write( "EQN.3-EQN.2<BR>\n" );
document.write( "5A+B=5.................5<BR>\n" );
document.write( "EQN.5 - EQN.4<BR>\n" );
document.write( "2A=4<BR>\n" );
document.write( "A=2<BR>\n" );
document.write( "SUBSTITUTING IN EQN.4....<BR>\n" );
document.write( "6+B=1<BR>\n" );
document.write( "B=-5<BR>\n" );
document.write( "SUBSTITUTING IN EQN.1<BR>\n" );
document.write( "2-5+C=-2<BR>\n" );
document.write( "C=1<BR>\n" );
document.write( "HENCE THE EQN.IS<BR>\n" );
document.write( "Y = 2X^2-5X+1<BR>\n" );
document.write( " </SPAN>\n" );
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