document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=131019>Question 131019</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help me with this word problem?\r<BR>\n" );
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document.write( "The function f(x) = 2x2 +22x + 320 models the number of inmates in federal and state prisons in the United States [ f (x), in thousands], x years after 1980. Find and interpret f(14).\r<BR>\n" );
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document.write( "To start is this right?  \r<BR>\n" );
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document.write( "4 + 22x + 320 = 22x + 324<BR>\n" );
document.write( "               -22    -22\r<BR>\n" );
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document.write( "                  x = 312\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #95684 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=95684\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I BELIEVE YOU ARE MISINTERPRETING THE X FACTOR; X MUST BE REPLACED BY 14.<BR>\n" );
document.write( "THUS THE 2X2 TERM SHOULD BE INTERPRETED AS (2*14^2) NOT (2*2).<BR>\n" );
document.write( "ALSO YOU CANNOT SUBTRACT 22 FROM THE TERMS 22X & 324. <BR>\n" );
document.write( "ALTHOUGH YOU CAN DIVIDE OR MULTIPLY THESE TERMS BY 22, IF IT IS APPROPRIATE.  <BR>\n" );
document.write( "f(x)=2x^2+22x+320<BR>\n" );
document.write( "f(14)=2*14^2+22*14+320<BR>\n" );
document.write( "f(14)=2*196+308+320<BR>\n" );
document.write( "f(14)=392+308+320<BR>\n" );
document.write( "f(14)=1,020  </SPAN>\n" );
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