Gce Model Questions Vol1 2022 Mathematics Question 10

Practice essay / theory question 10 from the 2022 Gce Model Questions Vol1 Mathematics examination. This question covers Variation .

Gce Model Questions Vol1 2022 Mathematics Essay / Theory
Topic: Variation
Question 10 GCE_MODEL_QUESTIONS_VOL1 • 2022 • MATHEMATICS • essay

A quantity \(y\) varies directly as \(x\) and inversely as the square of \((z-2)\).

Question Parts

( a )
When \(x = 5\) and \(z = 4\), the value of \(y\) is 12. Determine the constant of variation \(k\).
( b )
Using the constant found in part (a), calculate \(y\) when \(x = 8\) and \(z = 5\).
( c )
If the original values \(x\) and \(z\) are changed to \(3x\) and \(z+3\) respectively, express the new value \(y'\) in terms of the original \(y\).

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About This Question

This is Gce Model Questions Vol1 2022 Mathematics Question 10. It is one of the essay questions from the 2022 Gce Model Questions Vol1 Mathematics examination.

The question covers Variation .

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