Answer: {-2, -1, 0, 1, 2, 7, 8}.
Explanation:
To find the union of sets A and I, we need to combine all the unique elements from both sets. The union of two sets, denoted by A ∪ I, is the set that contains all the elements from both A and I without any duplicates.
In this case, the sets A and I are defined as follows:
A = {-2, -1, 0, 1, 7}
I = {-2, -1, 1, 2, 8}
To find the union, we combine all the unique elements from both sets:
A ∪ I = {-2, -1, 0, 1, 2, 7, 8}
Therefore, the union of sets A and I is {-2, -1, 0, 1, 2, 7, 8}.