In 1993, the life expectancy of males in a certain country was 61.3 years. In 1999, it was 64.7 years. Let E represent the life expectancy in year t and let t represent the number of years since 1993.
The linear function E(t) that fits the data is?
answer: E(t)=-0.03t+61.3
use function to predict life expectancy in 2003
answer: 61.6
2 answers
Isn't the first term negative.
yes so the answer would be 61 correct?
1 answer