In 1993, the life expectancy of males in a certain country was 71.5 years. In 1998, it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number.

1 answer

And then what? Do they want a linear curve fit?

Assume that the life expectancy increases 0.42 years per year.

E = 71.5 + 0.42 t
if t is in years.