document.write( "Question 359847: Problem: \n" );
document.write( "In 1990 the life expectancy of males in a certain country was 62.6 years. In 1994, it was 64.7. Let E represent the life expectancy in year t and let t represent the number of years since 1990. \n" );
document.write( "The linear function E(t) that fits the data is\r \n" );
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document.write( "E(t) = \n" );
document.write( "(round to the nearest 10th) \n" );
document.write( "Use the function to predict the life expectancy of males in 2007. \n" );
document.write( "E(17) = \r \n" );
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document.write( "This is what I have figured out so far. Please correct me if I am wrong. \n" );
document.write( "Two points (0, 62.6) (4, 64.7) \n" );
document.write( "Now: 64.7 - 62.6/4 - 0 = \n" );
document.write( "2.10/4 = \n" );
document.write( ".53 (round to the nearest tenth) would be .50.\r \n" );
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document.write( "So the first part of the problem asking for the linear function would be: \n" );
document.write( "E(t)= 0.5 + 62.6 \n" );
document.write( "Second Part \n" );
document.write( "E(17) = 0.5(17) + 62.6 = 71.1 \n" );
document.write( "E(17) = 71.1 \r \n" );
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document.write( "Is this correct? Thank you for your help!!!! \n" );
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