| Exam Board | CAIE |
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| Module | P2 (Pure Mathematics 2) |
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| Year | 2022 |
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| Session | June |
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| Topic | Implicit equations and differentiation |
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4 A curve has equation \(x ^ { 2 } y + 2 y ^ { 3 } = 48\).
Find the equation of the normal to the curve at the point ( 4,2 ), giving your answer in the form \(a x + b y + c = 0\) where \(a , b\) and \(c\) are integers.