document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167404>Question 167404</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The table gives the median values of new privately owned U.S. homes for 1983 through 1997. In the table, t is the time (in years) with t=3 corresponding to 1983, and y1 and y2 are the median prices (in thousands of dollars) in the Northeast and the South, respectively. \r<BR>\n" );
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document.write( "T= 3, 4, 5, 6, 7, 8<BR>\n" );
document.write( "Y1= 82.2, 88.6, 103.3, 125, 140, 149<BR>\n" );
document.write( "Y2= 70.9, 72, 75, 80.2, 88, 92\r<BR>\n" );
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document.write( "T=9,10, 11, 12, 13<BR>\n" );
document.write( "Y1= 159.6, 159, 155.9, 169, 162.6<BR>\n" );
document.write( "Y2= 96.4, 99, 100, 105.5, 115\r<BR>\n" );
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document.write( "T= 14, 15, 16, 17<BR>\n" );
document.write( "Y1= 169, 180, 186, 190<BR>\n" );
document.write( "Y2= 116.9, 124.5, 126.2, 129.6\r<BR>\n" );
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document.write( "a) use the regression capabilities of a graphing utility to fit a cubic model to the median prices of homes in the Northeast.<BR>\n" );
document.write( "b) Use the regression capabilities of a graphing utility to fit a cubic model to the median prices of homes in the South.\r<BR>\n" );
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document.write( "THANK YOU SO MUCH, IT MEANS A LOT! :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #254786 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=254786\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I used EXCEL's Chart Wizard and added a cubic trendline.<BR>\n" );
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document.write( "Y1:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y1+=+0.075x%5E3+-+2.3104x%5E2+%2B+27.21x+%2B+49.243 ALIGN=MIDDLE  ALT=\"y1+=+0.075x%5E3+-+2.3104x%5E2+%2B+27.21x+%2B+49.243\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5E2+=+0.9766 ALIGN=MIDDLE  ALT=\"R%5E2+=+0.9766\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Y2:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y2+=+-0.0046x%5E3+%2B+0.1299x%5E2+%2B+3.3988x+%2B+65.921 ALIGN=MIDDLE  ALT=\"y2+=+-0.0046x%5E3+%2B+0.1299x%5E2+%2B+3.3988x+%2B+65.921\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5E2+=+0.9899 ALIGN=MIDDLE  ALT=\"R%5E2+=+0.9899\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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