use the given graph of the function g to find the following limits: 1. $lim_{x\rightarrow2^{+}}g(x)=2$ help…

use the given graph of the function g to find the following limits: 1. $lim_{x\rightarrow2^{+}}g(x)=2$ help (limits) 2. $lim_{x\rightarrow2^{-}}g(x)= - 2$ 3. $lim_{x\rightarrow2}g(x)= dne$ 4. $lim_{x\rightarrow0}g(x)= - 2$ 5. $g(2)=1$
Answer
Explanation:
Step1: Recall limit definition
The limit as $x$ approaches $a$ from the right, $\lim_{x\rightarrow a^{+}}g(x)$, is the value $y$ that the function approaches as $x$ gets closer to $a$ through values greater than $a$. The limit as $x$ approaches $a$ from the left, $\lim_{x\rightarrow a^{-}}g(x)$, is the value $y$ that the function approaches as $x$ gets closer to $a$ through values less than $a$. The two - sided limit $\lim_{x\rightarrow a}g(x)$ exists if and only if $\lim_{x\rightarrow a^{-}}g(x)=\lim_{x\rightarrow a^{+}}g(x)$.
Step2: Analyze $\lim_{x\rightarrow 2^{+}}g(x)$
Looking at the graph, as $x$ approaches $2$ from the right (values of $x>2$), the function $g(x)$ approaches $2$. So $\lim_{x\rightarrow 2^{+}}g(x) = 2$.
Step3: Analyze $\lim_{x\rightarrow 2^{-}}g(x)$
As $x$ approaches $2$ from the left (values of $x < 2$), the function $g(x)$ approaches $- 2$. So $\lim_{x\rightarrow 2^{-}}g(x)=-2$.
Step4: Analyze $\lim_{x\rightarrow 2}g(x)$
Since $\lim_{x\rightarrow 2^{-}}g(x)=-2$ and $\lim_{x\rightarrow 2^{+}}g(x)=2$, and $-2\neq2$, the two - sided limit $\lim_{x\rightarrow 2}g(x)$ does not exist (dne).
Step5: Analyze $\lim_{x\rightarrow 0}g(x)$
As $x$ approaches $0$ from both the left and the right, the function $g(x)$ approaches $-2$. So $\lim_{x\rightarrow 0}g(x)=-2$.
Step6: Analyze $g(2)$
The value of the function $g(x)$ at $x = 2$ is given by the solid - dot on the graph at $x = 2$. From the graph, $g(2)=1$.
Answer:
- $\lim_{x\rightarrow 2^{+}}g(x)=2$
- $\lim_{x\rightarrow 2^{-}}g(x)=-2$
- $\lim_{x\rightarrow 2}g(x)=\text{dne}$
- $\lim_{x\rightarrow 0}g(x)=-2$
- $g(2)=1$