In order to represent the inequality -8 < x < 10 in interval notation, we need to know that the symbols < and > are represented by parenthesis, since the number at the end of the interval is not part of the solution, and the symbols ≥ and ≤ are represented by square brackets, since the number at the end of the interval is part of the solution.
So, the first number at the interval is -8, and the symbol is <, so we have (-8
Then, the second part of the interval has number 10 and the symbol <, so we have 10)
Therefore the correct interval notation is (-8, 10), so the correct option is (2)