Proving direct proportion from a radical equation

Proving direct proportion from a radical equation

Secondary 2
TGM Original Questions

Given \(\sqrt{\frac{y}{2x}}=4\):

  1. prove that \(y\) is directly proportional to \(x\) and state the constant of variation
  2. find \(y\) when \(x=1.5\).

Solution:

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Answer:(i) \(y=32x\), constant \(32\); (ii) \(y=48\).

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