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In 1994 the life expectancy of males in a certian country was 61.2 years in 2000 it was 63.3 years
Let E represent the life expectancy in year t and let t represent the number of years since 1994

the linear function E(t) that fits the data is
E(t)=?t + ?
use the function to predict the life expectancy of males in 2009
E(15)=?

Submitted: 110 days and 6 hours ago.

Category: Math

Value: $9

Status: CLOSED

Accepted Answer

Hi,

slope = (63.3 - 61.2)/(2000-1994) = 0.35

y-intercept is (0, 61.2)

E(t) = 0.4t + 61.2

E(15) = 0.4(15) + 61.2

E(15) = 67.2

Accepts:
Expert:	abozer
Pos. Feedback:	99.9 %
Answered:	8/3/2009

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Accepted Answer

Hi, slope = (63.3 - 61.2)/(2000-1994) = 0.35 y-intercept is (0, 61.2) E(t) = 0.4t + 61.2 E(15) = 0.4(15) + 61.2 E(15) = 67.2

Related Math Questions

Hi,

slope = (63.3 - 61.2)/(2000-1994) = 0.35

y-intercept is (0, 61.2)

E(t) = 0.4t + 61.2

E(15) = 0.4(15) + 61.2

E(15) = 67.2