document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=180499>Question 180499</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There is a flat fee x plus y dollers for every hour<BR>\n" );
document.write( "A person used 4 hours and had a fee of 63<BR>\n" );
document.write( "another person used it for 6 hours and had a fee of 87<BR>\n" );
document.write( "What is the value of the flat fee (x) and additional fee (y)\r<BR>\n" );
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document.write( "Please explain steps  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #135251 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=135251\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is a flat fee x plus y dollers for every hour<BR>\n" );
document.write( "A person used 4 hours and had a fee of 63<BR>\n" );
document.write( "another person used it for 6 hours and had a fee of 87<BR>\n" );
document.write( "What is the value of the flat fee (x) and additional fee (y) <BR>\n" );
document.write( "-----------------------------------------------------------------<BR>\n" );
document.write( "Points:<BR>\n" );
document.write( "(4,63) and (6,87)\r<BR>\n" );
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document.write( "slope = (87-63)/(6-4) = 24/2 = 12<BR>\n" );
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document.write( "intercept:<BR>\n" );
document.write( "63 = 12*4 + b<BR>\n" );
document.write( "b = 63-48<BR>\n" );
document.write( "b = 15<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "y = 12x + 15<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Flat fee = $15<BR>\n" );
document.write( "Additional fee = $12 per hour<BR>\n" );
document.write( "===================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );