Find the domain and range.
-three times a number
$\begin{array} { l }
4 \rightarrow 12 \
9 \rightarrow 27 \
14 \rightarrow 42 \
19 \rightarrow 57
\end{array}$
A) Domain: {4,12,9,27} ; range: {14,42,19,57}
B) Domain: {4,9,14,19} ; range: {12,27,42,57}
C) Domain: {4,9,14,19,12,27,42,57} ; range: {4,9,14,19,12,27,42,57}
D) Domain: {12,27,42,57} ; range: {4,9,14,19}

Question

Find the domain and range.
-three times a number 
$\begin{array} { l } 
4 \rightarrow 12 \
9 \rightarrow 27 \
14 \rightarrow 42 \
19 \rightarrow 57
\end{array}$
A) Domain:  {4,12,9,27} ;  range:  {14,42,19,57} 
B) Domain:  {4,9,14,19} ;  range:  {12,27,42,57} 
C) Domain:  {4,9,14,19,12,27,42,57} ;  range:  {4,9,14,19,12,27,42,57} 
D) Domain:  {12,27,42,57} ;  range:  {4,9,14,19}

Quizplus · Accepted Answer

The domain of a function is the set of all possible inputs (x-values), and the range is the set of all possible outputs (y-values). In this case, the inputs are 4, 9, 14, and 19, and the corresponding outputs after tripling are 12, 27, 42, and 57, respectively.

Find the Domain and Range 4→129→2714→4219→57\begin{array} { l } 4 \rightarrow 12 \\9 \rightarrow 27 \\14 \rightarrow 42 \\19 \rightarrow 57\end{array}4→129→2714→4219→57​

Find the Domain and Range $\begin{array} { l } 4 \rightarrow 12 \\9 \rightarrow 27 \\14 \rightarrow 42 \\19 \rightarrow 57\end{array}$