document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=129387>Question 129387</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the quadratic model for the set of values.<BR>\n" );
document.write( "(1,-2), (2,-2), (3,-4) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #94502 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=94502\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the quadratic model for the set of values.<BR>\n" );
document.write( "(1,-2), (2,-2), (3,-4)<BR>\n" );
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document.write( "Substitute each of those x/y pairs into the <BR>\n" );
document.write( "quadratic form y = ax^2+bx+c.<BR>\n" );
document.write( "You will get three equations with variables a,b, and c.<BR>\n" );
document.write( "Solve the system of equations.<BR>\n" );
document.write( "Rewrite y = ax^2+bx+c with the values you find for a,b,and c.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "Answer: y = -x^2+3x-4<BR>\n" );
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