document.write( "Question 1184603: Biologists have found that the number of chirps some crickets make per minute is related to temperature. When crickets chirp 124 times a minute, it is about 68 degrees Fahrenheit. When they chirp 172 times a minute, it is about 80 degrees Fahrenheit. How warm is it when the crickets are chirping 150 times a minute? \n" ); document.write( "

Algebra.Com's Answer #815247 by Edwin McCravy(20056) $\"\"$ $\"About$

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document.write( "x = chirps, y = degrees\r\n" );
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document.write( ">>>When crickets chirp 124 times a minute, it is about 68 degrees Fahrenheit. \r\n" );
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document.write( "So when x = 124, y = 68.  So the graph of the equation contains the point\r\n" );
document.write( "(124,68)\r\n" );
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document.write( ">>>When they chirp 172 times a minute, it is about 80 degrees Fahrenheit.\r\n" );
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document.write( "So when x = 172, y = 80.  So the graph of the equation contains the point\r\n" );
document.write( "(172,80)\r\n" );
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document.write( "We assume the graph of the equation is a straight line.\r\n" );
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document.write( "So we use the slope formula to find the slope of the line\r\n" );
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document.write( "We use the point-slope equation:\r\n" );
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document.write( "Add 68 to both sides\r\n" );
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document.write( ">>>How warm is it when the crickets are chirping 150 times a minute?\r\n" );
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document.write( "Substitute x = 150:\r\n" );
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document.write( "Edwin

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