Answer: 2x + 3.
- A 2x + 3
- B 2x − 3
- C (x + 3)/2
- D x/2 + 3
Correct answer: A. 2x + 3
Explanation: Let y = (x − 3)/2, solve for x: x = 2y + 3, so f⁻¹(x) = 2x + 3.
Concept context
Ordered pairs, Cartesian products, types of relations and functions, domain and range. Foundation for calculus and Class 12 algebra.