document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=514288>Question 514288</A>: <I><SPAN STYLE=\"word-break: break-all;\"> donovan is a salesperson at a car dealership. last month he sold 11 cars and earned 6300 in base salary and commissions.  this month he sold 24 cars and earned 12800 in base salary and commissions.  finda a linear equation that describes the amount donovan earns in commissions (y) for selling x cars. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #343389 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=343389\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You want to end up with an equation<BR>\n" );
document.write( "that looks like <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+m%2Ax++ ALIGN=MIDDLE  ALT=\"+y+=+m%2Ax++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = cars sold per month<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+ ALIGN=MIDDLE  ALT=\"+y+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = commission<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;\" > = base salary<BR>\n" );
document.write( "There is no constant on the right side because<BR>\n" );
document.write( "commission only depends on number of cars sold<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Using given data, I can say:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B1%5D+=+6300+-+b+ ALIGN=MIDDLE  ALT=\"+y%5B1%5D+=+6300+-+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B2%5D+=+12800+-+b+ ALIGN=MIDDLE  ALT=\"+y%5B2%5D+=+12800+-+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Subtract (1) from (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B2%5D+=+12800+-+b+ ALIGN=MIDDLE  ALT=\"+y%5B2%5D+=+12800+-+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-y%5B1%5D+=+-6300+%2B+b+ ALIGN=MIDDLE  ALT=\"+-y%5B1%5D+=+-6300+%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=+y%5B2%5D+-+y%5B1%5D+=+6500+ ALIGN=MIDDLE  ALT=\"+y%5B2%5D+-+y%5B1%5D+=+6500+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I can say<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+y%5B2%5D+-+y%5B1%5D+%29+%2F+%28+x%5B2%5D+-+x%5B1%5D+%29+=+m+ ALIGN=MIDDLE  ALT=\"+%28+y%5B2%5D+-+y%5B1%5D+%29+%2F+%28+x%5B2%5D+-+x%5B1%5D+%29+=+m+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+6500+%2F+%28+24+-+11+%29+=+m+ ALIGN=MIDDLE  ALT=\"+6500+%2F+%28+24+-+11+%29+=+m+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+6500+%2F+13+ ALIGN=MIDDLE  ALT=\"+m+=+6500+%2F+13+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+500+ ALIGN=MIDDLE  ALT=\"+m+=+500+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The equation is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+500x+ ALIGN=MIDDLE  ALT=\"+y+=+500x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Here's the plot ( in hundreds of dollars )<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+400%2C+400%2C+-2%2C+12%2C+-1%2C+20%2C+5x+%29+ ALIGN=MIDDLE  ALT=\"+graph%28+400%2C+400%2C+-2%2C+12%2C+-1%2C+20%2C+5x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "I can also find base salary<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B1%5D+=+500x%5B1%5D+ ALIGN=MIDDLE  ALT=\"+y%5B1%5D+=+500x%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B1%5D+=+500%2A11+ ALIGN=MIDDLE  ALT=\"+y%5B1%5D+=+500%2A11+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B1%5D+=+5500+ ALIGN=MIDDLE  ALT=\"+y%5B1%5D+=+5500+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B2%5D+=+500x%5B2%5D+ ALIGN=MIDDLE  ALT=\"+y%5B2%5D+=+500x%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B2%5D+=+500%2A24+ ALIGN=MIDDLE  ALT=\"+y%5B2%5D+=+500%2A24+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y%5B2%5D+=+12000+ ALIGN=MIDDLE  ALT=\"+y%5B2%5D+=+12000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+6300+=+5500+%2B+b+ ALIGN=MIDDLE  ALT=\"+6300+=+5500+%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+=+800+ ALIGN=MIDDLE  ALT=\"+b+=+800+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "also<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12800+=+12000+%2B+b+ ALIGN=MIDDLE  ALT=\"+12800+=+12000+%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+=+800+ ALIGN=MIDDLE  ALT=\"+b+=+800+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "base salary is $800<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );