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

\begin{tabular}{|l|c|c|c|c|c|c|}
\hline
[tex]$x$[/tex] & -1 & -0.5 & 0 & 0.5 & 1 \\
\hline
[tex]$y$[/tex] & 3 & 4 & 5 & 6 & 7 \\
\hline
\end{tabular}

A. Domain: [tex]$\{-1,-0.5,0,0.5,1\}$[/tex] Range: [tex]$\{3,4,5,6,7\}$[/tex]

B. Domain: [tex]$\{-1,-0.5,0,0.5,1\}$[/tex] Range: [tex]$y \geq 3$[/tex]

C. Domain: [tex]$-1 \leq x \leq 1$[/tex] Range: [tex]$\{3,4,5,6,7\}$[/tex]

D. Domain: [tex]$-1 \leq x \leq 1$[/tex] Range: [tex]$y \geq 3$[/tex]



Answer :

To determine the domain and range of the function represented by the given table, we need to analyze the provided [tex]\(x\)[/tex] and [tex]\(y\)[/tex] values.

The table of values is:
[tex]\[ \begin{tabular}{|l|c|c|c|c|c|} \hline $x$ & -1 & -0.5 & 0 & 0.5 & 1 \\ \hline $y$ & 3 & 4 & 5 & 6 & 7 \\ \hline \end{tabular} \][/tex]

### Step-by-Step Solution:

1. Domain:
The domain of a function consists of all the unique [tex]\(x\)[/tex] values for which the function is defined. From the table, we see that the [tex]\(x\)[/tex] values are:
[tex]\[ x = \{-1, -0.5, 0, 0.5, 1\} \][/tex]

2. Range:
The range of a function consists of all the unique [tex]\(y\)[/tex] values that the function takes. From the table, we see that the [tex]\(y\)[/tex] values are:
[tex]\[ y = \{3, 4, 5, 6, 7\} \][/tex]

Given these observations, we compare the possible answers:

- Option A:
- Domain: [tex]\(\{-1, -0.5, 0, 0.5, 1\}\)[/tex]
- Range: [tex]\(\{3, 4, 5, 6, 7\}\)[/tex]

- Option B:
- Domain: [tex]\(\{-1, -0.5, 0, 0.5, 1\}\)[/tex]
- Range: [tex]\(y \geq 3\)[/tex]

- Option C:
- Domain: [tex]\(-1 \leq x \leq 1\)[/tex]
- Range: [tex]\(\{3, 4, 5, 6, 7\}\)[/tex]

- Option D:
- Domain: [tex]\(-1 \leq x \leq 1\)[/tex]
- Range: [tex]\(y \geq 3\)[/tex]

### Analysis of Options:

- Option A correctly lists the individual [tex]\(x\)[/tex] values and [tex]\(y\)[/tex] values.
- Option B correctly lists the individual [tex]\(x\)[/tex] values but incorrectly describes the range as [tex]\(y \geq 3\)[/tex], which implies all [tex]\(y\)[/tex] values greater than or equal to 3 without specifying the specific values.
- Option C correctly describes the domain as [tex]\( -1 \leq x \leq 1 \)[/tex] but should have listed each individual [tex]\(x\)[/tex] value.
- Option D incorrectly describes both the domain and range as ranges of values rather than the specific values given in the table.

Thus, the correct answer is:

A. Domain: [tex]\(\{-1, -0.5, 0, 0.5, 1\}\)[/tex] Range: [tex]\(\{3, 4, 5, 6, 7\}\)[/tex]