Questions: Determine whether the relation is a function. Identify the domain and the range.
[
(4,16),(6,24),(7,28)
]
Is the relation a function?
No
Yes
Transcript text: Determine whether the relation is a function. Identify the domain and the range.
\[
\{(4,16),(6,24),(7,28)\}
\]
Is the relation a function?
No
Yes
Solution
Solution Steps
Step 1: Check if the relation is a function
To determine if the relation is a function, verify that each input \( x \) in the relation corresponds to exactly one output \( y \). In the given relation:
\[
\{(4,16),(6,24),(7,28)\}
\]
\( 4 \) maps to \( 16 \),
\( 6 \) maps to \( 24 \),
\( 7 \) maps to \( 28 \).
Since no \( x \)-value is repeated, the relation is a function.
Step 2: Identify the domain
The domain of a relation is the set of all \( x \)-values. From the relation:
\[
\{(4,16),(6,24),(7,28)\}
\]
The domain is:
\[
\{4, 6, 7\}
\]
Step 3: Identify the range
The range of a relation is the set of all \( y \)-values. From the relation:
\[
\{(4,16),(6,24),(7,28)\}
\]
The range is:
\[
\{16, 24, 28\}
\]
Final Answer
The relation is a function: Yes.
Domain: \( \{4, 6, 7\} \)
Range: \( \{16, 24, 28\} \)