0580/22 Feb/Mar 2024, Question 22: Inverse Proportion: y = k/x
Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Calculator · 2 marks
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The question, in short
Given y inversely proportional to the square of (x + 3), and y = 0.375 when x = 5, find y in terms of x.
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Solution · 2 marks
- 1y = k/(x + 3)²
- 20.375 = k/(5 + 3)² = k/64
- 3k = 0.375 × 64 = 24
- 4y = 24/(x + 3)²
Answer24/(x + 3)²
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Also searched as: 0580/22/F/M/24 · 0580_m24_qp_22 · 0580 m24 22 · question 22.
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