Question 9
FunctionsIf f(x) = 1/(2 − x), x ≠ 2, find f−1(−½).
- A.4
- B.0
- C.−2
- D.−4
Show the answer and explanation
Answer: A (4)
Explanation
f−1(−½) is the x for which 1/(2 − x) = −½. Then 2 − x = −2, so x = 4.
If f(x) = 1/(2 − x), x ≠ 2, find f−1(−½).
Answer: A (4)
f−1(−½) is the x for which 1/(2 − x) = −½. Then 2 − x = −2, so x = 4.