$\"\"$

The table is \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\
x
\ \
y
\
\
5
\ \
2
\
\
10
\ \
$\"\"$ 2
\
\
15
\ \
$\"\"$ 2
\
\
20
\ \
$\"\"$ 2
\
\ Express the relation as ordered pairs $\"\"$ . $\"\"$

The domain of the relation is the set of all first (x-coordinates) coordinates.

The domain of the relation is $\"\"$ .

The range of the relation is the set of second (y-coordinates) coordinates.

The range of the relation is $\"\"$ . $\"\"$

Each element of the domain is paired with exactly one element of the range.

Therefore the relation is a function. $\"\"$

Yes.

\ x \	\ y \
\ 5 \	\ 2 \
\ 10 \	\ $\"\"$ 2 \
\ 15 \	\ $\"\"$ 2 \
\ 20 \	\ $\"\"$ 2 \