$\"\"$

Observe the graph :

To express the relation as a set of ordered pairs, write the $\"\"$ -coordinate of the points followed by the corresponding $\"\"$ - coordinates.

The ordered pairs are $\"\"$ .

Therefore, the domain is the set of $\"\"$ -coordinates and the range is the set of $\"\"$ -coordinates.

So, the domain is $\"\"$ and the range is $\"\"$ .

$\"\"$

The domain is $\"\"$ and the range is $\"\"$ .