O-LevelAdditional MathematicsTrigonometryMay/June 2013Paper 1 Q11 Mark

On the axes below sketch, for 0 ≤ x ≤ 2π, the graph of y = cosx - 1. Which of the following best describes the graph?

Q: What topic does this question test?

This question tests Trigonometry in O-Level Additional Mathematics (syllabus code 4037). It is worth 1 mark.

A[Graph of cosx shifted up by 1 unit]

B[Graph of cosx with range [-1, 1] shifted down by 1 unit]

C[Graph of cosx with range [-2, 0] shifted down by 1 unit]

D[Graph of sinx shifted down by 1 unit]

✓ Correct Answer

The correct answer is C: [Graph of cosx with range [-2, 0] shifted down by 1 unit]

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This O-Level Additional Mathematics Question

Topic

This multiple-choice question tests Trigonometry in O-Level Additional Mathematics (syllabus code 4037). It is worth 1 mark.

Source

This question appeared in the Cambridge O-Level Additional Mathematics May/June 2013 examination, Paper 1 Variant 1.

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