document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=829268>Question 829268</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you determine the cost for 7 hours using the chart <BR>\n" );
document.write( "2,5 5,11 8,17 10,21. 7,? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #499724 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=499724\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Do you mean this way:<BR>\n" );
document.write( "(2,5), (5,11), (8,17), (10,21), ( 7,?);<BR>\n" );
document.write( "Find the coordinate when x=7 ?\r<BR>\n" );
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document.write( "The slope among each pair of data points is 2.<BR>\n" );
document.write( "(21-17)/(10-8)=2;<BR>\n" );
document.write( "(17-11)/(8-5)=2;<BR>\n" );
document.write( "(11-5)/(5-2)=2.\r<BR>\n" );
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document.write( "Simply start at (5,11).  Increase from 5 by TWO units; ;and increase from 11 by FOUR units.  What point it this?<BR>\n" );
document.write( "------------(7, 15) </SPAN>\n" );
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