Answer: All non-negative real numbers.
- A All real numbers
- B All non-negative real numbers
- C All positive real numbers
- D [-1, 1]
Correct answer: B. All non-negative real numbers
Explanation: x² is always greater than or equal to 0 for all real x, so range = [0, infinity) = non-negative reals.
Concept context
Ordered pairs, Cartesian products, types of relations and functions, domain and range. Foundation for calculus and Class 12 algebra.