Questions: What are the domain and range of this relation?
(-6,9)
(-9,-8)
(-9,-7)
(-1,10)
(-1,7)
domain: -9,-7,-6,-1
domain: -9,-6,-1
range: -8,-7,7,9,10
range: -8,7,9,10
Transcript text: What are the domain and range of this relation?
\[
\begin{array}{l}
(-6,9) \\
(-9,-8) \\
(-9,-7) \\
(-1,10) \\
(-1,7)
\end{array}
\]
domain: $\{-9,-7,-6,-1\}$
domain: $\{-9,-6,-1\}$
range: $\{-8,-7,7,9,10\}$
range: $\{-8,7,9,10\}$
Solution
Solution Steps
Step 1: Identify the domain
The domain of a relation is the set of all first elements (x-values) in the ordered pairs. From the given relation:
\[
\begin{array}{l}
(-6,9) \\
(-9,-8) \\
(-9,-7) \\
(-1,10) \\
(-1,7)
\end{array}
\]
The x-values are: \(-6, -9, -9, -1, -1\). Removing duplicates, the domain is:
\[
\{-9, -6, -1\}
\]
Step 2: Identify the range
The range of a relation is the set of all second elements (y-values) in the ordered pairs. From the given relation, the y-values are: \(9, -8, -7, 10, 7\). Removing duplicates, the range is:
\[
\{-8, -7, 7, 9, 10\}
\]
Step 3: Compare with the given options
The correct domain is \(\{-9, -6, -1\}\), and the correct range is \(\{-8, -7, 7, 9, 10\}\).
Final Answer
The domain is \(\boxed{\{-9, -6, -1\}}\), and the range is \(\boxed{\{-8, -7, 7, 9, 10\}}\).