The population of a certain city was 299000 in 1998, and the observed relative growth rate is 5 percent per year. (a) Find a function that models the population after t years. Your answer is (299000)(1.05)^t (b) Find the projected population in the year 2004. Your answer is 4672 (c) In what year will the population reach 774277? Your answer is 2017

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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How do I solve part b? I know that part a and c are correct but I'm having a hard time trying to figure out what number to plug into t for the exponent. 

**Population Growth Model**

The population of a certain city was 299,000 in 1998, and the observed relative growth rate is 5 percent per year. 

**(a) Find a function that models the population after \( t \) years.**

The function provided is:
\[ P(t) = 299000 \times (1.05)^t \]

**(b) Find the projected population in the year 2004.**

The answer given is:
\[ P(2004) = 4672 \]

(Note: The calculation seems incorrect. The function should be applied as follows: \( P(2004) = 299000 \times (1.05)^6 \).)

**(c) In what year will the population reach 7,742,277?**

The year provided is:
\[ 2017 \]

These steps illustrate how exponential growth functions can be used to model population changes over time.
Transcribed Image Text:**Population Growth Model** The population of a certain city was 299,000 in 1998, and the observed relative growth rate is 5 percent per year. **(a) Find a function that models the population after \( t \) years.** The function provided is: \[ P(t) = 299000 \times (1.05)^t \] **(b) Find the projected population in the year 2004.** The answer given is: \[ P(2004) = 4672 \] (Note: The calculation seems incorrect. The function should be applied as follows: \( P(2004) = 299000 \times (1.05)^6 \).) **(c) In what year will the population reach 7,742,277?** The year provided is: \[ 2017 \] These steps illustrate how exponential growth functions can be used to model population changes over time.
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