The function is defined by for . The inverse function is undefined at exactly one value of . What is that value?
Answer and explanation
Correct answer: A. 2
- Step 1: Find the inverse function by setting and solving for : .
- Step 2: Rearrange to isolate : .
- Step 3: Thus , which is undefined where its denominator equals zero ().
Answer
2.
Why not the others: is where the original function is undefined, which is the horizontal asymptote of .
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