document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=818820>Question 818820</A>: <I><SPAN STYLE=\"word-break: break-all;\"> X   4 5 6 7  9<BR>\n" );
document.write( "Y   4 8 9 12  17<BR>\n" );
document.write( "Determine hat y=   ?x+(?)<BR>\n" );
document.write( "Round to three decimal place<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 #492812 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20059)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492812\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> That asks,\r<BR>\n" );
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document.write( "\"What is the equation of the line that comes the closest <BR>\n" );
document.write( "to passing through these 5 points? (The regression line) \r<BR>\n" );
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document.write( "(4,4), (5,8), (6,9), (7,12), and (9,17) \r<BR>\n" );
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document.write( "On your TI-83 or 84\r<BR>\n" );
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document.write( "press ON<BR>\n" );
document.write( "press CLEAR<BR>\n" );
document.write( "press STAT<BR>\n" );
document.write( "press 1<BR>\n" );
document.write( "         in L1 enter 4,5,6,7,9 and in L2 enter 4,8,9,12,17\r<BR>\n" );
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document.write( "press STAT<BR>\n" );
document.write( "press the right arrow key once to highlight CALC<BR>\n" );
document.write( "press 4<BR>\n" );
document.write( "press ENTER\r<BR>\n" );
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document.write( "read\r<BR>\n" );
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document.write( "y=ax+b<BR>\n" );
document.write( "a=2.5<BR>\n" );
document.write( "b=-5.5<BR>\n" );
document.write( "rē=.9840425532<BR>\n" );
document.write( "r=.9919891901\r<BR>\n" );
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document.write( "Answer:  y=2.5x-5.5  The 5 points and the regression line are drawn below:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C8400%2F13%2C-2%2C11%2C-2%2C19%2C+graph%28400%2C8400%2F13%2C-2%2C11%2C-2%2C19%29%2C+%0D%0Acircle%284%2C4%2C0.15%29%2Ccircle%284%2C4%2C0.13%29%2Ccircle%284%2C4%2C0.11%29%2Ccircle%284%2C4%2C0.09%29%2Ccircle%284%2C4%2C0.07%29%2Ccircle%284%2C4%2C0.05%29%2Ccircle%284%2C4%2C0.03%29%2Ccircle%284%2C4%2C0.01%29%2Clocate%284%2C4%2C%22%284%2C4%29%22%29%2C%0D%0A%0D%0Acircle%285%2C8%2C0.15%29%2Ccircle%285%2C8%2C0.13%29%2Ccircle%285%2C8%2C0.11%29%2Ccircle%285%2C8%2C0.09%29%2Ccircle%285%2C8%2C0.07%29%2Ccircle%285%2C8%2C0.05%29%2Ccircle%285%2C8%2C0.03%29%2Ccircle%285%2C8%2C0.01%29%2C+locate%285%2C8%2C%22%285%2C8%29%22%29%2C%0D%0A%0D%0Acircle%287%2C12%2C0.15%29%2Ccircle%287%2C12%2C0.13%29%2Ccircle%287%2C12%2C0.11%29%2Ccircle%287%2C12%2C0.09%29%2Ccircle%287%2C12%2C0.07%29%2Ccircle%287%2C12%2C0.05%29%2Ccircle%287%2C12%2C0.03%29%2Ccircle%287%2C12%2C0.01%29%2C+locate%287%2C12%2C%22%287%2C12%29%22%29%2C%0D%0A%0D%0Acircle%286%2C9%2C0.15%29%2Ccircle%286%2C9%2C0.13%29%2Ccircle%286%2C9%2C0.11%29%2Ccircle%286%2C9%2C0.09%29%2Ccircle%286%2C9%2C0.07%29%2Ccircle%286%2C9%2C0.05%29%2Ccircle%286%2C9%2C0.03%29%2Ccircle%286%2C9%2C0.01%29%2C+locate%286%2C9%2C%22%286%2C9%29%22%29%2C%0D%0A%0D%0Acircle%289%2C17%2C0.15%29%2Ccircle%289%2C17%2C0.13%29%2Ccircle%289%2C17%2C0.11%29%2Ccircle%289%2C17%2C0.09%29%2Ccircle%289%2C17%2C0.07%29%2Ccircle%289%2C17%2C0.05%29%2Ccircle%289%2C17%2C0.03%29%2Ccircle%289%2C17%2C0.01%29%2C+locate%289%2C17%2C%22%289%2C17%29%22%29%2C%0D%0A%0D%0Aline%28-9%2C-28%2C19%2C42%29+%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Edwin</pre> </SPAN>\n" );
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