document.write( "Question 1150574: You can find an equation for the temperature in degrees Celsius for a given temperature in degrees Fahrenheit by finding the function is ______? \n" ); document.write( "
Algebra.Com's Answer #771950 by Edwin McCravy(20055)\"\" \"About 
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document.write( "we let y = the degrees in Celsius and x = the degrees in Fahrenheit. \r\n" );
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document.write( "The freezing point of water in Celsius is 0°.\r\n" );
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document.write( "The freezing point of water in Fahrenheit is 32°.\r\n" );
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document.write( "So one ordered pair is (x1,y1) = (32,0).\r\n" );
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document.write( "The boiling point of water in Celsius is 100°.\r\n" );
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document.write( "The boiling point of water in Fahrenheit is 212°.\r\n" );
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document.write( "So another ordered pair is (x2,y2) = (212,100).\r\n" );
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document.write( "So we find the equation of the line through those two points (ordered pairs).\r\n" );
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document.write( "We use the slope formula:\r\n" );
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document.write( "\"matrix%281%2C3%2Cm%2C%22%22=%22%22%2C%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29%29\"\r\n" );
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document.write( "where (x1,y1) = (32,0)\r\n" );
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document.write( "and where (x2,y2) = (212,100)\r\n" );
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document.write( "After you find m (which will be a fraction, which you will reduce), substitute\r\n" );
document.write( "it into\r\n" );
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document.write( "the point-slope formula:\r\n" );
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document.write( "y - y1 = m(x - x1)\r\n" );
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document.write( "where (x1,y1) = (32,0)\r\n" );
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document.write( "You finish this.\r\n" );
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document.write( "After you finish you might substitute C for y and F for x.\r\n" );
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document.write( "Edwin

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