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Difficulty guide

The label describes the problem, not your ability.

1/5 - Foundational

Warm-up setup; checks one basic idea.

2/5 - Routine exam skill

Normal syllabus skill; usually one main rule or interpretation.

3/5 - Standard multi-step

Exam-style problem with multiple steps or a common trap.

4/5 - Hard exam skill

High-end exam problem; combines methods carefully.

5/5 - Challenge

Stretch problem beyond normal exam pressure.

Question

Use the graph of ff shown.
Total: 6 points

(a) Classify the discontinuity at x=−1x=-1 and give the limit there. (2 points)

(b) Classify the discontinuity at x=0x=0 and explain why the two-sided limit fails. (2 points)

(c) Classify the discontinuity at x=4x=4 and name the related graph feature. (2 points)

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