1. The problem asks to find the best linear equation to model the town's population $P$ (in thousands) as a function of time $t$ years after 2000, from 2000 to 2010.
2. A linear model has the form $$P(t) = mt + b$$ where $m$ is the slope (rate of change of population per year) and $b$ is the initial population at $t=0$ (year 2000).
3. From the scatter plot description, the population increases roughly linearly from left to right, so the slope $m$ should be positive but relatively small since population growth is usually gradual.
4. Let's analyze each option:
- $P(t) = 0.02t + 1.12$: slope $m=0.02$, intercept $b=1.12$
- $P(t) = 1.12t + 0.20$: slope $m=1.12$, intercept $b=0.20$
- $P(t) = 1.12t + 0.02$: slope $m=1.12$, intercept $b=0.02$
- $P(t) = 0.20t + 1.12$: slope $m=0.20$, intercept $b=1.12$
5. Since the population is in thousands, an intercept around 1.12 means 1120 people at year 2000, which is reasonable.
6. The slope $m$ represents the increase in population per year in thousands. A slope of 1.12 means an increase of 1120 people per year, which is quite large for a small town.
7. A slope of 0.02 means an increase of 20 people per year, which is very small.
8. A slope of 0.20 means an increase of 200 people per year, which is reasonable.
9. Therefore, the best linear model is $$P(t) = 0.20t + 1.12$$ which balances a reasonable initial population and a plausible growth rate.
Final answer:
$$\boxed{P(t) = 0.20t + 1.12}$$
Population Model 038523
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.