document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=630583>Question 630583</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a word problem that I need help with,please.<BR>\n" );
document.write( "The total sales of a company in 2008 were $45,000. In 2011, it grew to 84,000. Use x as the number of years since 2000 and y as the total sales.<BR>\n" );
document.write( "What is the rate of change(slope) in the total sales?<BR>\n" );
document.write( "Write an equation in bith point-slope form and slope-intercept form modeling the company's sales<BR>\n" );
document.write( "What are the prodected sales for the year 2016?(16 years after 2000}<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 #397015 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=397015\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The slope is ( change in y ) / ( change in x ) = <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+84000+-+45000+%29+%2F+%28+11+-+8+%29+ ALIGN=MIDDLE  ALT=\"+%28+84000+-+45000+%29+%2F+%28+11+-+8+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+39000+%2F+3++=+13000+ ALIGN=MIDDLE  ALT=\"+39000+%2F+3++=+13000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So, the slope is $13,000 / year<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "The gneral form for a straight line is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+mx+%2B+b+ ALIGN=MIDDLE  ALT=\"+y+=+mx+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > where <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+ ALIGN=MIDDLE  ALT=\"+m+\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the slope and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the y-intercept.<BR>\n" );
document.write( "So far I have<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+13000x+%2B+b+ ALIGN=MIDDLE  ALT=\"+y+=+13000x+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "I can find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > by plugging in any (x,y) pair<BR>\n" );
document.write( "that is on the line, like ( 11, 84000 )<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+84000+=+13000%2A11+%2B+b+ ALIGN=MIDDLE  ALT=\"+84000+=+13000%2A11+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+84000+-+143000+ ALIGN=MIDDLE  ALT=\"+b+=+84000+-+143000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+-59000+ ALIGN=MIDDLE  ALT=\"+b+=+-59000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So, the equation is <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+13000x+-+59000+ ALIGN=MIDDLE  ALT=\"+y+=+13000x+-+59000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "For the year 2016,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+13000%2A16+-+59000+ ALIGN=MIDDLE  ALT=\"+y+=+13000%2A16+-+59000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+208000+-+59000+ ALIGN=MIDDLE  ALT=\"+y+=+208000+-+59000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+149000+ ALIGN=MIDDLE  ALT=\"+y+=+149000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The projected sales is $149,000\r<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );