0580/22 Oct/Nov 2023, 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 x inversely proportional to √w, with x = 3 when w = 16, find the equation for x in terms of w.
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Solution · 2 marks
- 1x = k/√w
- 23 = k/√16 = k/4, so k = 12
- 3x = 12/√w
Answer12/√w
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