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In 2015, Macon County had a population of 53,792. The population increases by 2.5% annually. Which function can be used to model the population t years after

2015?

In 2015, Macon County had a population of 53,792. The population increases by 2.5% annually-example-1
User Lasplund
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2 Answers

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17 votes

Answer: The answer is B

Step-by-step explanation: I took the test.

User GeekOnGadgets
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The correct function to model the population t years after 2015 is: f(t) = 53,792 * (1.025)^t

Here's the breakdown:

53,792: This represents the initial population in 2015.

(1.025)^t: This represents the population growth factor.

^t: This represents the number of years that have passed since 2015.

The population increases by 2.5% annually, which means it is multiplied by 1.025 every year.

Therefore, after t years, the population will be the initial population multiplied by the growth factor raised to the power of t.

This is why the correct function is f(t) = 53,792 * (1.025)^t.

Incorrect options:

Of(t) = 53, 792(1.25) t: This incorrectly uses 1.25 as the growth factor instead of 1.025.

Of(t) = 1.02t+ 53,792: This incorrectly includes an additional term of 1.02t, which is not part of the exponential growth model.

Therefore, the function f(t) = 53,792 * (1.025)^t accurately models the population of Macon County t years after 2015

User Zemzela
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