Which is the correct interval form of x ≥ −3?
Answer and explanation
Correct answer: [−3, ∞)
The inequality x ≥ −3 includes −3 itself and every real number greater than −3. In interval notation, inclusion of the left endpoint is shown with a square bracket, so the left side is [−3. Infinity is never an actual endpoint, so it always uses a round parenthesis. Hence the solution set is [−3, ∞), answer B.
Frequently asked questions
What is the correct answer to this question?
[−3, ∞)
Why is this the correct answer?
The inequality x ≥ −3 includes −3 itself and every real number greater than −3. In interval notation, inclusion of the left endpoint is shown with a square bracket, so the left side is [−3. Infinity is never an actual endpoint, so it always uses a round parenthesis. Hence the solution set is [−3, ∞), answer B.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Linear Inequalities. Topic: representation on number line.
