document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=176356>Question 176356</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Free market.  The equation S = 5000 + 200x    and   D = 9500 - 100x express the supply S and the demand D, respectively, for a popular compact disc brand in terms of its price x (in dollars).									<BR>\n" );
document.write( "     a) Graph the equations on the same coordinate system.									<BR>\n" );
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document.write( "     b) What happens to the supply as the price increases?									<BR>\n" );
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document.write( "     c) What happens to the demand as the price increases?									<BR>\n" );
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document.write( "     d) The price at which supply and demand are equal is called the equilibrium price. What is the equilibrium price?									<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 #131457 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=131457\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a.)Supply graph is in red.<BR>\n" );
document.write( "Demand graph is in green.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28+300%2C+300%2C-20%2C+80%2C+-100%2C+9900%2Cgrid%28+1+%29%2Ccircle%28+0%2C+0%2C+.2+%29%2Cgraph%28+300%2C+300%2C+-20%2C80%2C+-100%2C+9900%2C+5000+%2B+200x+%2C++9500+-+100x+%29%29+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "b.) Supply goes up as price increases.<BR>\n" );
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document.write( "c.) Demand goes down as price increases.<BR>\n" );
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document.write( "At the equilibrium price,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S=D ALIGN=MIDDLE  ALT=\"S=D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5000+%2B+200x+=9500+-+100x+ ALIGN=MIDDLE  ALT=\"5000+%2B+200x+=9500+-+100x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300x=4500 ALIGN=MIDDLE  ALT=\"300x=4500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=15 ALIGN=MIDDLE  ALT=\"x=15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The equilibrium price is $15. </SPAN>\n" );
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