document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321056>Question 321056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have looked thru about 1000 answers on here and can't figure out how to solve my problem.  Finding the slope, I came up with .20. Am I right that this means there is a .20 increase of profit per person?  I feel like this should be so simple but I just can't quite come up with an equation that works.  Please help!!  Here is the problem:  If the profit from 500 customers is $1000 and the profit from 900 customers is $3000, what will the profit be for 1500 customers?\r<BR>\n" );
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document.write( "Thanks so much!\r<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 #229922 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=229922\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  If the profit from 500 customers is $1000 and the profit from 900 customers is $3000, what will the profit be for 1500 customers? <BR>\n" );
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document.write( "Find a linear equation that relates profit and # of customers.<BR>\n" );
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document.write( "slope = (3000-1000)/(900-500) = 2000/400 = 5<BR>\n" );
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document.write( "1000 = 5(500) + b<BR>\n" );
document.write( "b = -1500<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "profit = 5(cust) - 1500<BR>\n" );
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document.write( "what will the profit be for 1500 customers? <BR>\n" );
document.write( "profit = 5*1500-1500<BR>\n" );
document.write( "profit = 4*1500 = $6000<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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