in 1994 the life expectancy of malews in a certain country was 70.9 years. In 1998 it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994
The linear functionE(t) that fits the data is
E(t)= 80.6t+81.0
Use the function to predict the life expectancy of males in 2004
E(10)=85.9
Is this correct?
If (t)= 80.6t + 81.0 , how does E(10) = 85.9? I believe there is a typo in the slope of the linear function E(t).
E(t)=80.6t+81.0 and E(10)= 85.9 is what I came with which I guess you are saying that it is wrong thanks I will try to rework the problem
To determine if the prediction is correct, we can substitute the value of t=10 into the function E(t) and calculate the result.
Given the linear function E(t) = 80.6t + 81.0, we can substitute t=10 into the equation:
E(10) = 80.6(10) + 81.0
E(10) = 806 + 81
E(10) = 887
Therefore, the predicted life expectancy of males in 2004 is 887 years.
Comparing this answer with the statement "E(10) = 85.9", we can conclude that the statement is incorrect.