document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=499221>Question 499221</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given the total cost function C(x) = 7000 + 2x<BR>\n" );
document.write( "a) what is the form of the function<BR>\n" );
document.write( "b) state its domain </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #337472 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=337472\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> C(x) = 2*x + 7000<BR>\n" );
document.write( ".<BR>\n" );
document.write( "This is a linear equation.<BR>\n" );
document.write( "The domain of x all real numbers.<BR>\n" );
document.write( "However, it is not sensible to have negative production.<BR>\n" );
document.write( "So, x is all real numbers >= 0.<BR>\n" );
document.write( "If x is discrete (that is, you cannot produce a fraction of a unit),<BR>\n" );
document.write( "x is all integers >= 0.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "In cost accounting, you would say the variable cost per unit of x is $2 and the fixed costs are $7000.<BR>\n" );
document.write( "If you produce zero units, you still face $7000 in costs (a fixed amount = constant).<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Done </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );