document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=948208>Question 948208</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A parabola whose axis is parallel to the y-axis passes through the points (1,1), (2,2) and (-1,5). Find its equation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #578702 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=578702\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A parabola whose axis is parallel to the y-axis passes through the points (1,1), (2,2) and (-1,5). Find its equation.<BR>\n" );
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document.write( "Form:: <BR>\n" );
document.write( "ax^2 + bx + c = y<BR>\n" );
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document.write( "Using (1,1) u get:: a + b + c = 1<BR>\n" );
document.write( "Using (2,2) u get: 4a + 2b + c = 2<BR>\n" );
document.write( "Using (-1,5) u get: a - b + c = 5<BR>\n" );
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document.write( "Using a Matrix Program I get::<BR>\n" );
document.write( "a = 1<BR>\n" );
document.write( "b = -2<BR>\n" );
document.write( "c = 2<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "y = x^2 - 2x + 2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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