document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1163445>Question 1163445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let x be the numbet of years since 1980 and y be the life expectancy for a person born between ( 1980 + x ) and ( 1980 + x + 5 ). Find the quadratic equation whose graph passess through the points  ( 0, 78,2) , ( 5, 79) and ( 10, 79.2 ) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #787530 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52787)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=787530\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "This object in parentheses (0,78,2) is not a point in a plane.\r<BR>\n" );
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document.write( "To solve the problem successfully, &nbsp;first, &nbsp;you &nbsp;(the visitor) &nbsp;should write the problem correctly.\r<BR>\n" );
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document.write( "The second is to &nbsp;FORGET &nbsp;about this wording definition of the function in the first part of the problem,\r<BR>\n" );
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document.write( "and concentrate your attention on parabola only.\r<BR>\n" );
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document.write( "The first part of the problem's description is a typical &nbsp;\"noise\", &nbsp;whose destination is to distract <BR>\n" );
document.write( "the reader attention and to confuse him.\r<BR>\n" );
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document.write( "Do not be amazing&nbsp;: &nbsp;some problems are specially constructed in this way, &nbsp;so you should be ready to it <BR>\n" );
document.write( "and should be aware about it. \r<BR>\n" );
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document.write( "The rest is just a technique.\r<BR>\n" );
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document.write( "The lesson to learn from the solution is &nbsp;THIS :\r<BR>\n" );
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document.write( "    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In such problems, &nbsp;it is vitally important to separate parts of the description \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;that are a &nbsp;\"noise\", &nbsp;and forget about them.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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