Direct Proportion Involving Cubic Powers
Direct Proportion Involving Cubic Powers
Secondary 2
\(y\) is directly proportional to \({{x}^{3}}\). It is also given that \(y=24\) when \(x=2\).
- Find the equation connecting \(y\) and \(x\).
- Hence, find the value of \(y\) when \(x=3\).
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Answer:(a) \(y = 3x^3\), (b) \(y = 81\)
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