The relation is
\Express the relation as ordered pairs.
Draw a table with two columns and list the x-coordinates in the first column and
\y-coordinates.in the second column.
\ \
x \ | \
\
y \ | \
\
13 \ | \
\
5 \ | \
\
─4 \ | \
\
2 \ | \
\
6 \ | \
\
0 \ | \
13 | \10 | \
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
This is not a function because 13 in the domain is paired with two range values 5 and 10.
\Therefore the relation is not a function.
No.