Question

In 1995, the life expectancy of males was 70.5 years. In 2000, it was 73.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995.

Answer 1

We need more information. Do we assume that it's linear, exponential, etc.?

Answer 2

that's linear.

Answer 3

(1995, 70.5) and (2000, 73.0)

Answer 4

So, the slope is 0.5

E = 0.5t + 70.5

Answer 5

E(10)=?
I'm still confused

Answer 6

E = 0.5t + 70.5
E = 0.5(10) + 70.5

im sure u can solve it now.

Answer 7

i got 75.5...thats right?

Answer 8

Yes!! :D

Answer 9

thank you

Answer 10

no problem.