document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=455563>Question 455563</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the early years of microcomputers, school districts could not afford to buy a computer for every student. As the price of computers decreased, more and more school districts have been able to attain this goal. <BR>\n" );
document.write( "The following table lists numbers of students per computer during these early years.<BR>\n" );
document.write( "                          Year    1983   1985   1987   1989<BR>\n" );
document.write( "Students/computer                  125    50     32     22<BR>\n" );
document.write( "  <BR>\n" );
document.write( "                           Year   1991   1993   1995   1997<BR>\n" );
document.write( "Students/computer                  18     14     10     6\r<BR>\n" );
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document.write( "a)make a scatterplot of the data. Would a straight line model the data accurately? Please explain.\r<BR>\n" );
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document.write( "b)Explain how well the formula models these data, where S represents the students per computer and y represents the year.\r<BR>\n" );
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document.write( "S =_____________125__________  y > 1983<BR>\n" );
document.write( "        1 + 0.7 (y – 1983)   ‘\r<BR>\n" );
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document.write( "c)In what year does the formula reveal that there were about 17 students per computer?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344707 by </B><A HREF=/tutors/aboutme.mpl?userid=shauney><B>shauney(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=shauney><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=344707\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In the early years of microcomputers, school districts could not afford to buy a computer for every student. As the price of computers decreased, more and more school districts have been able to attain this goal. <BR>\n" );
document.write( "The following table lists numbers of students per computer during these early years.<BR>\n" );
document.write( " Year 1983 1985 1987 1989<BR>\n" );
document.write( " Students/computer 125 50 32 22\r<BR>\n" );
document.write( "\n" );
document.write( " Year 1991 1993 1995 1997<BR>\n" );
document.write( " Students/computer 18 14 10 6 <BR>\n" );
document.write( "a)make a scatterplot of the data. Would a straight line model the data accurately? Please explain.<BR>\n" );
document.write( " b)Explain how well the formula models these data, where S represents the students per computer and y represents the year.<BR>\n" );
document.write( " S =_____________125__________ y > 1983<BR>\n" );
document.write( " 1 + 0.7 (y – 1983) ‘ <BR>\n" );
document.write( "c)In what year does the formula reveal that there were about 17 students per computer?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );