What are the domain and range of the function represented by the table?

\begin{tabular}{|c|c|c|c|c|c|}
\hline
[tex]$x$[/tex] & -8 & -6 & -4 & -2 & 0 \\
\hline
[tex]$y$[/tex] & 2 & 2 & 2 & 2 & 2 \\
\hline
\end{tabular}

A. Domain: [tex]$\{-8, -6, -4, -2, 0\}$[/tex] Range: [tex]$\{2\}$[/tex]
B. Domain: [tex]$\{2\}$[/tex] Range: [tex]$y \leq 0$[/tex]
C. Domain: [tex]$-8 \leq x \leq 0$[/tex] Range: [tex]$\{2\}$[/tex]
D. Domain: [tex]$\{2\}$[/tex] Range: [tex]$\{-8, -6, -4, -2, 0\}$[/tex]



Answer :

We have a table of values for a function from which we need to determine the domain and range. The table is given as follows:

[tex]\[ \begin{array}{|c|c|c|c|c|c|} \hline x & -8 & -6 & -4 & -2 & 0 \\ \hline y & 2 & 2 & 2 & 2 & 2 \\ \hline \end{array} \][/tex]

Let's analyze this step-by-step.

### Determining the Domain

The domain of a function is the set of all possible input values (x-values). From the table, the x-values are:
[tex]\[ \{-8, -6, -4, -2, 0\} \][/tex]

### Determining the Range

The range of a function is the set of all possible output values (y-values). From the table, all the y-values are the same:
[tex]\[ \{2, 2, 2, 2, 2\} \implies \{2\} \][/tex]

### Comparing with Given Options

Next, we compare our findings with the options provided.

- Option A:
- Domain: [tex]\(\{-8, -6, -4, -2, 0\}\)[/tex]
- Range: [tex]\(\{2\}\)[/tex]

This matches exactly with our findings.

- Option B:
- Domain: [tex]\(\{2\}\)[/tex]
- Range: [tex]\(y \leq 0\)[/tex]

The domain here does not match our findings. Additionally, the range described does not match the values in the table.

- Option C:
- Domain: [tex]\(-8 \leq x \leq 0\)[/tex]
- Range: [tex]\(\{2\}\)[/tex]

While this can be represented as the interval [tex]\([-8, 0]\)[/tex], the domain is usually listed explicitly with the exact values from the table. Therefore, the usual representation [tex]\(\{-8, -6, -4, -2, 0\}\)[/tex] is more precise.

- Option D:
- Domain: [tex]\(\{2\}\)[/tex]
- Range: [tex]\(\{-8, -6, -4, -2, 0\}\)[/tex]

The domain here does not match the given x-values. Additionally, the range described does not match the constant y-value of 2.

Therefore, comparing all options, we see that:

The correct answer is option A.

Domain: [tex]\(\{-8, -6, -4, -2, 0\}\)[/tex]
Range: [tex]\(\{2\}\)[/tex]