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OpenStudy (anonymous):
The life expectancy for human beings in 1940 was 62.9 years, and the life expectancy in 1980 was 73.7 years. Find the equation of the line that models how the life expectancy of human beings changes as time progresses using these two pieces of data. Answer y=0.27x + 460.9 y= 460.9x – 0.27 y=0.27x – 460.9 y= 460.9x + 0.27
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