document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=235461>Question 235461</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please I need help with this problem:\r<BR>\n" );
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document.write( "1.  The number of publishers in the usa has increased approximately linearly from 40,964 in 1993 to 73,200 publishers in 2003.  Let n be the number of publishers at t years since 1990<BR>\n" );
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document.write( "(a) find an equation of a linear model to describe the data.  (b) what is the slope?  what does it mean in this situation? (c) what is the n intercept? what does it mean in this situation?<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 #173422 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=173422\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please I need help with this problem: <BR>\n" );
document.write( "1. The number of publishers in the usa has increased approximately linearly from 40,964 in 1993 to 73,200 publishers in 2003. Let n be the number of publishers at t years since 1990<BR>\n" );
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document.write( "You have two points (t,n): (3,40,964) and (13,73,200)<BR>\n" );
document.write( "slope = (73200-40964)/10 = 3223.6<BR>\n" );
document.write( "intercept = ?<BR>\n" );
document.write( "40,964 = 3223.6*3 + b<BR>\n" );
document.write( "b = 31293.2<BR>\n" );
document.write( "Equation: f(t) = 0.322.6n + 31293.2<BR>\n" );
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document.write( "The slope means the number of publishers increased by 3224 each year<BR>\n" );
document.write( "after 1993<BR>\n" );
document.write( "The n-intercept = (0,31293) means that in 1990 the number of <BR>\n" );
document.write( "publishers was 31293 according to the model.<BR>\n" );
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document.write( "(a) find an equation of a linear model to describe the data. (b) what is the slope? what does it mean in this situation? (c) what is the n intercept? what does it mean in this situation?<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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