document.write( "Question 1154557: The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of -0.5. See the figure below.\r
\n" ); document.write( "\n" ); document.write( "Suppose that the height of the candle after 18 hours is 15 centimeters. What was the height of the candle after 15 hours?
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Algebra.Com's Answer #777009 by josgarithmetic(39625)\"\" \"About 
You can put this solution on YOUR website!
Height y depends on time x.\r
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\n" ); document.write( "\n" ); document.write( "Slope \"-0.5\", and point (18,15);
\n" ); document.write( "Equation in point-slope form is \"y-15=-0.5%28x-18%29\",\r
\n" ); document.write( "\n" ); document.write( "\"y=-0.5x%2B9%2B15\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight_green%28y=-0.5x%2B24%29\"\r
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\n" ); document.write( "\n" ); document.write( "The question asks for y if x is 15.
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