If f(x) = (4x + 3)/(6x − 4), x ≠ 2/3, then the inverse of f is:
If f(x) = (4x + 3)/(6x − 4), x ≠ 2/3, then the inverse of f is:
- A. (6x − 4)/(4x + 3)
- B. f itself
- C. (4x − 3)/(6x + 4)
- D. Does not exist
Answer: B) f itself
Explanation: Let y = (4x + 3)/(6x − 4). Solving for x: y(6x − 4) = 4x + 3 → 6xy − 4y = 4x + 3 → x(6y − 4) = 4y + 3 → x = (4y + 3)/(6y − 4). Thus, f⁻¹(x) = (4x + 3)/(6x − 4) = f(x).
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