In 1991, the life expectancy of males in certain a country was 63.5 years. In 1995, it was 67 years. Let E represent the life expectancy in years t and let t represent the number of years since 1991.

The linear function E(t) that fits data is
E(t)=?t +?
Round to the nearest tent

Question

In 1991, the life expectancy of males in certain a country was 63.5 years. In 1995, it was 67 years. Let E represent the life expectancy in years t and let t represent the number of years since 1991.

The linear function E(t) that fits data is
E(t)=?t +?
Round to the nearest tent

anonymous · Answer

Also using the fncton to predict the life expectancy of males in 2008
E(17) 
Round to the nearest tenth

anonymous · Answer

The first one would be 63.5(1991)