Graphical Analysis
1. **State the problem:** Analyze the graph of the function $y = g(x)$ to determine its symmetry, intervals of increase/decrease, local extrema, absolute extrema on the interval $[-2.5, 4.5]$, and the average rate of change from $x = -1$ to $x = 2$.
2. **Determine if $g(x)$ is even, odd, or neither:**
- A function is even if $g(-x) = g(x)$ for all $x$.
- It is odd if $g(-x) = -g(x)$.
- From the description, $g(x)$ is not symmetric about the y-axis or origin. Thus, $g(x)$ is neither even nor odd.
3. **Identify intervals where $g(x)$ is increasing:**
- From the graph, $g(x)$ increases from approximately $x = -2$ to $x = 0$ (rising to local max at $(0,3)$).
- Then after the local min at $x=1.5$, it increases again from $x hicksim 1.5$ to $x hicksim 2.75$.
4. **Identify intervals where $g(x)$ is decreasing:**
- From the local max at $x = 0$ to the local min at $x = 1.5$, $g(x)$ decreases.
- From the local max at $x = 2.75$ onward to $x = 4$, $g(x)$ decreases.
5. **Find local maxima and minima:**
- Local maxima at approximately $(0, 3)$ and $(2.75, 2)$.
- Local minimum at approximately $(1.5, 1)$.
6. **Find absolute maximum and minimum on $[-2.5, 4.5]$:**
- From graph and described endpoints approximate values:
- Endpoints roughly near $(-2.5, $ hicksim$-1)$ and $(4.5, $ hicksim$0)$.
- Absolute max is local max at $(0, 3)$.
- Absolute min is near endpoint $(−2.5, -1)$.
7. **Find average rate of change from $x = -1$ to $x = 2$:**
- Average rate of change formula:
$$\frac{g(2) - g(-1)}{2- (-1)} = \frac{g(2)-g(-1)}{3}$$
- Approximate $g(2)$ from graph is about 1.8 (between local min and max).
- Approximate $g(-1)$ from graph is about 1 (between start and local max).
- Compute:
$$\frac{1.8 - 1}{3} = \frac{0.8}{3} \approx 0.267$$
**Final answers:**
- $g(x)$ is neither even nor odd.
- Increasing on $(-2, 0)$ and $(1.5, 2.75)$.
- Decreasing on $(0, 1.5)$ and $(2.75, 4)$.
- Local maxima: $(0, 3)$ and $(2.75, 2)$.
- Local minimum: $(1.5, 1)$.
- Absolute max on $[-2.5, 4.5]$ is $(0, 3)$.
- Absolute min near $(-2.5, -1)$.
- Average rate of change from $-1$ to $2$ is approximately $0.267$.