document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=261535>Question 261535</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A company finds that it can produce 10 solar heaters for $7500, while the production of 20 heaters costs $13,900.  If cost is a linear function of the number of heaters produced, express the cost function where x is the number of heaters produced. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #192689 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=192689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use (10,7500) and (20,13900) as two points on the line and make the equation from there.<BR>\n" );
document.write( "Use <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%5B1%5D-y%5B2%5D%29%2F%28x%5B1%5D-x%5B2%5D%29=m ALIGN=MIDDLE  ALT=\"%28y%5B1%5D-y%5B2%5D%29%2F%28x%5B1%5D-x%5B2%5D%29=m\"   DISABLED_style= \"max-width:90%; height:auto;\" > to find m and y=mx+b to find b and to construct the final equation.<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );