document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329428>Question 329428</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are a manufacturer of a certain type of watch.  You’ve calculated that it costs $600 to make 35 watches and $715 to make 50 watches.  \r<BR>\n" );
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document.write( "Assuming this relationship is linear, write an equation that relates cost to the number of watches you make.  <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 #236251 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=236251\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the slope.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28715-600%29%2F%2850-35%29=115%2F15=23%2F3 ALIGN=MIDDLE  ALT=\"m=%28715-600%29%2F%2850-35%29=115%2F15=23%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=%2823%2F3%29W%2Bb ALIGN=MIDDLE  ALT=\"C=%2823%2F3%29W%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use either point to solve for b.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600=%2823%2F3%29%2835%29%2Bb ALIGN=MIDDLE  ALT=\"600=%2823%2F3%29%2835%29%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=1800%2F3-805%2F3 ALIGN=MIDDLE  ALT=\"b=1800%2F3-805%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=995%2F3 ALIGN=MIDDLE  ALT=\"b=995%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28C=%2823%2F3%29W%2B%28995%2F3%29%29 ALIGN=MIDDLE  ALT=\"highlight%28C=%2823%2F3%29W%2B%28995%2F3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > where W is the number of watches,C is the cost.\r<BR>\n" );
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