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What are the domain and range of each relation?

Drag the answer into the box to match each relation.

[tex]\[
\begin{tabular}{|c|c|}
\hline
$x$ & $y$ \\
\hline
-4 & -2 \\
\hline
-2 & 1 \\
\hline
1 & 4 \\
\hline
4 & 4 \\
\hline
\end{tabular}
\][/tex]

A. Domain: [tex]$\{-2, -1, 0, 2\}$[/tex] Range: [tex]$\{-4, -2, 2\}$[/tex]

B. Domain: [tex]$\{-4, -2, 1, 4\}$[/tex] Range: [tex]$\{-2, 1, 4\}$[/tex]

C. Domain: [tex]$\{-4, -2, -1\}$[/tex] Range: [tex]$\{-2, 0, 1\}$[/tex]


Sagot :

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

First, let's identify the domain and range of the relation described by the table:
[tex]\[ \begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline -4 & -2 \\ \hline -2 & 1 \\ \hline 1 & 4 \\ \hline 4 & 4 \\ \hline \end{tabular} \][/tex]

- The domain consists of all the [tex]\(x\)[/tex] values:
[tex]\[ \{-4, -2, 1, 4\} \][/tex]

- The range consists of all the [tex]\(y\)[/tex] values:
[tex]\[ \{-2, 1, 4\} \][/tex]

Next, let's compare the domain and range we've determined with the provided sets to match each one:

1. Domain: [tex]\(\{-2, -1, 0, 2\}\)[/tex]
Range: [tex]\(\{-4, -2, 2\}\)[/tex]

This does not match the domain [tex]\(\{-4, -2, 1, 4\}\)[/tex] or the range [tex]\(\{-2, 1, 4\}\)[/tex] of our relation.

So, the match for this set is:
[tex]\((\text{False}, \text{False})\)[/tex]

2. Domain: [tex]\(\{-4, -2, 1, 4\}\)[/tex]
Range: [tex]\(\{-2, 1, 4\}\)[/tex]

This precisely matches the domain [tex]\(\{-4, -2, 1, 4\}\)[/tex] and the range [tex]\(\{-2, 1, 4\}\)[/tex] of our relation.

So, the match for this set is:
[tex]\((\text{True}, \text{True})\)[/tex]

3. Domain: [tex]\(\{-4, -2, -1\}\)[/tex]
Range: [tex]\(\{-2, 0, 1\}\)[/tex]

This does not match the domain [tex]\(\{-4, -2, 1, 4\}\)[/tex] or the range [tex]\(\{-2, 1, 4\}\)[/tex] of our relation.

So, the match for this set is:
[tex]\((\text{False}, \text{False})\)[/tex]

Hence:
1. The pair [tex]\(\{-2, -1, 0, 2\}\)[/tex] and [tex]\(\{-4, -2, 2\}\)[/tex] does not match our relation.
2. The pair [tex]\(\{-4, -2, 1, 4\}\)[/tex] and [tex]\(\{-2, 1, 4\}\)[/tex] correctly matches our relation.
3. The pair [tex]\(\{-4, -2, -1\}\)[/tex] and [tex]\(\{-2, 0, 1\}\)[/tex] does not match our relation.

Therefore, the correct match is:
[tex]\[ \{ \{-4, -2, 1, 4\}, \{-2, 1, 4\} \} \][/tex]