Question

On (4,4),(5,6),(9,9) which is the domain?

Answer 1

The domain would be the first number in the ordered pair. In this case, 4,5 and 9 are the domains.

Explanation:

Answer 2

The domain of those coordinates is {4,5,9}
The domain of a set of points is always the X value, and the range is always the Y value
Hope this helped!