Which interval notation correctly represents negative real numbers?
Answer and explanation
Correct answer: (-∞, 0)
Negative real numbers are precisely the real numbers less than zero. Zero itself is neither negative nor positive, so it must be excluded; this is indicated by a round parenthesis at 0. The values continue without bound toward the left, represented by negative infinity. Therefore, the correct interval is (-∞, 0).
Frequently asked questions
What is the correct answer to this question?
(-∞, 0)
Why is this the correct answer?
Negative real numbers are precisely the real numbers less than zero. Zero itself is neither negative nor positive, so it must be excluded; this is indicated by a round parenthesis at 0. The values continue without bound toward the left, represented by negative infinity. Therefore, the correct interval is (-∞, 0).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Sets. Topic: Sets and their representations.
