0580/22 Feb/Mar 2023, Question 16: Inverse Proportion: y = k/x
Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
y is inversely proportional to x²; given y = 2 when x = 3, find y when x = 2.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1y = k/x²
- 22 = k/3², so k = 18
- 3y = 18/2² = 4.5
Answer4.5
Stuck on a step? Read the free lesson: Inverse Proportion: y = k/x
Practise more inverse proportion: y = k/x questions
Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on inverse proportion: y = k/x
Also searched as: 0580/22/F/M/23 · 0580_m23_qp_22 · 0580 m23 22 · question 16.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.