Answer: Bijective.
- A Bijective
- B One-one but not onto
- C Onto but not one-one
- D Neither one-one nor onto
Correct answer: A. Bijective
Explanation: It is strictly increasing so injective, and every real y is attained by x = (y − 5)/3, so surjective.
Concept context
Types of relations, equivalence classes, one-one and onto functions, composition, and invertible functions