Hey there! I'm happy to help!
The domain is all of the x-values of a relation and the range is all of the y-values. When you write them out, you order the numbers from least to greatest and put it in brackets.
The domain of our relation is the x-values of these points, which are 11, 9, 7, and 5. The domain is {5,7,9,11}.
The range is the y-values, which are 1, 2, 3, and 4. So, the range is {1,2,3,4}.
Now you can find the domain and range given a few ordered pairs!
Have a wonderful day!