Question

In 1992, the life expectancy of males in a certain country was 67.4 years. in 1998, it was 69.7 years. Let E represent the life expectancy in year t and let t represent the numbr of years since 1992.
Q; The linear function that fits the data is

E(t)=?t+? (round to the nearest tenth)
Q; Use the function to predict the life expectancy pf males in 2004

E(12)=?

Answer 1

69.7 - 67.4 = 2.3 slope = 2.3/6 = 0.3833
function is E = 0.3833t + 67.4

in 2004 t = 12
E = 0.38333*12 + 67.4 = 72

Answer 2

is that rounded to the nearest tenth?

Answer 3

yea - it came out to 71.99

Answer 4

AWESOME! thanks a lot!

Answer 5

no probs

Answer 6

plz check good answer to close this question

Answer 7

okay

Answer 8

ty