SOLUTION: From 1984 to 1987, medical expenses in the US rose in a linear pattern from 10.3% of the gross national product to 10.9% in 1987. If the level of growth continues at this rate wri

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: From 1984 to 1987, medical expenses in the US rose in a linear pattern from 10.3% of the gross national product to 10.9% in 1987. If the level of growth continues at this rate wri      Log On


   



Question 507874: From 1984 to 1987, medical expenses in the US rose in a linear pattern
from 10.3% of the gross national product to 10.9% in 1987. If the level of growth continues at this rate write a linear equation to describe the percent of gross national product devoted to medical expensess, y in year x.

Answer by stanbon(75887) About Me  (Show Source):
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From 1984 to 1987, medical expenses in the US rose in a linear pattern
from 10.3% of the gross national product to 10.9% in 1987. If the level of growth continues at this rate write a linear equation to describe the percent of gross national product devoted to medical expensess, y in year x.
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In 3 years the growth amount was 0.6% = 0.006
The yearly average growth amount is 0.006/3 = 0.002
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Equation: y = 0.002x + 0.103
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cheers,
Stan H.