Question 35
FunctionsIf g(x) = (x + 1)/(x + 2), (x ≠ −2), find g−1(2).
- A.3
- B.2
- C.−2
- D.−3
Show the answer and explanation
Answer: D (−3)
Explanation
Solve (x + 1)/(x + 2) = 2: x + 1 = 2x + 4, so x = −3.
If g(x) = (x + 1)/(x + 2), (x ≠ −2), find g−1(2).
Answer: D (−3)
Solve (x + 1)/(x + 2) = 2: x + 1 = 2x + 4, so x = −3.