A tricky word problem involving linear functions?

In 1995, the life expectancy of males in a certain country was 68.6 years. In 2002, it was 71.4 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995. The linear function E(t) that fits the data is E(t)=?t + ? (to the nearest tenth) and use the function E(10) to predict the life expectancy of males in 2005: E(10)=?