1. **State the problem:** We are asked to find various limits and function values of $g(t)$ at points $t=0$, $t=2$, and $t=4$ based on the graph description.
2. **Recall limit definitions:**
- The left-hand limit $\lim_{t \to a^-} g(t)$ is the value $g(t)$ approaches as $t$ approaches $a$ from the left.
- The right-hand limit $\lim_{t \to a^+} g(t)$ is the value $g(t)$ approaches as $t$ approaches $a$ from the right.
- The limit $\lim_{t \to a} g(t)$ exists if and only if the left and right limits are equal.
3. **Analyze each part:**
(a) $\lim_{t \to 0^-} g(t)$: From the left of 0, the graph is near $y = -2$.
(b) $\lim_{t \to 0^+} g(t)$: From the right of 0, the graph is slightly above $-2$ (open circle), so the limit is slightly above $-2$.
(c) $\lim_{t \to 0} g(t)$: Since left and right limits differ (left is $-2$, right is slightly above $-2$), the limit does not exist.
(d) $\lim_{t \to 2^-} g(t)$: Approaching 2 from the left, the graph approaches the filled dot at $(2,2)$, so limit is 2.
(e) $\lim_{t \to 2^+} g(t)$: Approaching 2 from the right, the graph approaches the open circle at $(2,4)$, so limit is 4.
(f) $\lim_{t \to 2} g(t)$: Left and right limits differ (2 and 4), so limit does not exist.
(g) $g(2)$: The filled dot at $(2,2)$ means $g(2) = 2$.
(h) $\lim_{t \to 4} g(t)$: The graph continues upward past $t=4$ smoothly, so the limit is the $y$-value at $t=4$, which is about 4.
**Final answers:**
(a) $-2$
(b) slightly above $-2$
(c) does not exist
(d) $2$
(e) $4$
(f) does not exist
(g) $2$
(h) $4$
Limits Graph 6680Db
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