document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1123253>Question 1123253</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average value of a certain type of automobile was $13,140 in 2007 and depreciated to $4740 in 2010. Let y be the average value of the automobile in the year x, where x = 0 represents 2007. Write a linear equation that models the value of the automobile in terms of the year x.<BR>\n" );
document.write( "I need help solving this. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #739547 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=739547\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Description is of (x,y) points, (0, 13140) and (3, 4740).\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=mx%2Bb ALIGN=MIDDLE  ALT=\"y=mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=y-mx ALIGN=MIDDLE  ALT=\"b=y-mx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%284740-13140%29%2F%283%29 ALIGN=MIDDLE  ALT=\"m=%284740-13140%29%2F%283%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=-2800 ALIGN=MIDDLE  ALT=\"m=-2800\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since the x=0 point was given in description, for year 2007, b=13140.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=-2800x%2B13140%29 ALIGN=MIDDLE  ALT=\"highlight%28y=-2800x%2B13140%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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