document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1148980>Question 1148980</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 12 hours of burning, a candle has a height of 14.8 centimeters. After 29 hours of burning, its height is 4.6 centimeters. What is the height of the candle after 21 hours? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #770318 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=770318\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Points (x,y) for time and height\r<BR>\n" );
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document.write( "(12,14.8) and (29,4.6);<BR>\n" );
document.write( "What is y when x is 21 ?\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-14.8=%28%284.6-14.8%29%2F%2829-12%29%29%28x-12%29 ALIGN=MIDDLE  ALT=\"y-14.8=%28%284.6-14.8%29%2F%2829-12%29%29%28x-12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%28%28-10.2%29%2F%2817%29%29%28x-12%29%2B14.8 ALIGN=MIDDLE  ALT=\"y=%28%28-10.2%29%2F%2817%29%29%28x-12%29%2B14.8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-0.6%28x-12%29%2B14.8 ALIGN=MIDDLE  ALT=\"y=-0.6%28x-12%29%2B14.8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-0.6x%2B7.2%2B14.8 ALIGN=MIDDLE  ALT=\"y=-0.6x%2B7.2%2B14.8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28y=-0.6x%2B22%29 ALIGN=MIDDLE  ALT=\"highlight_green%28y=-0.6x%2B22%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >----------------substitute 21 for x, and evaluate.\r<BR>\n" );
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