Practice question · Multiple choice
A function satisfies , but . What does the graph look like near ?
Hints
- The limit reports where the curve is heading; the value reports where the point was placed. They are independent pieces of data.
- Approach from both sides along the curve, you drift toward 3. The definition just parks a dot elsewhere.
Show the answer
C. The curve heads toward 3, with a lone dot at 5
Why
This is a removable discontinuity: the curve funnels toward 3, but someone stuck the actual point at 5. Continuity is precisely the demand that these two, the heading and the landing, agree.
Practise Limits and continuity
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