The domain is {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...} and the range is {15, 30, 45, 60, 75, 90, ...}.
The domain of the sequence is all natural numbers from 1 to 10 and continues infinitely. This is because the table shows terms for n = 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, and there is no indication that the sequence stops there.
The range of the sequence is all multiples of 15 from 15 to 90 and continues infinitely. This is because the table shows terms for f(n) = 15, 30, 45, 60, 75, and 90, which are all multiples of 15, and there is no indication that the sequence stops there.