Determine whether the relation represents a function. If it is a function, state the domain and range.
-$\begin{aligned}
4 & \rightarrow 8 \
9 & \rightarrow 18 \
14 & \rightarrow 28 \
19 & \rightarrow 38
\end{aligned}$

A) function
domain: $ \{8,18,28,38\} $
range: $ \{4,9,14,19\} $

B) function
domain: $ \{4,9,14,19\} $
range: $ \{8,18,28,38\} $

C) $\text { not a function }$

Question

Determine whether the relation represents a function. If it is a function, state the domain and range.
-$\begin{aligned}
4 & \rightarrow 8 \
9 & \rightarrow 18 \
14 & \rightarrow 28 \
19 & \rightarrow 38
\end{aligned}$

A) function
domain: $ \{8,18,28,38\} $
range: $ \{4,9,14,19\} $

B) function
domain: $ \{4,9,14,19\} $
range: $ \{8,18,28,38\} $

C) $\text { not a function }$

Quizplus · Accepted Answer

Each input (4, 9, 14, 19) is associated with exactly one output (8, 18, 28, 38), which defines a function. The domain is the set of inputs $\{4,9,14,19\}$, and the range is the set of outputs $\{8,18,28,38\}$.

Determine Whether the Relation Represents a Function 4→89→1814→2819→38\begin{aligned}4 & \rightarrow 8 \\9 & \rightarrow 18 \\14 & \rightarrow 28 \\19 & \rightarrow 38\end{aligned}491419​→8→18→28→38​

Determine Whether the Relation Represents a Function $\begin{aligned}4 & \rightarrow 8 \\9 & \rightarrow 18 \\14 & \rightarrow 28 \\19 & \rightarrow 38\end{aligned}$