The domain would be the x value in each of the points.
Domain Range
-4 3
3 6
-2 1
3 6
Step-by-step explanation:
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No
Step-by-step explanation: The set of counting numbers {1, 2, 3, 4, ...} is called the set of natural numbers. The natural numbers begin with 1 and go on indefinitely.
Decimals are not natural numbers unless they have a 0 after the decimal point that repeats. However, 2.8 does not so it's not natural.