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Choosing a proportion model

Choosing a proportion model

Secondary 2

For each equation, state whether \(y\) is directly proportional to \(x\), inversely proportional to \(x\), or neither. Give a reason.

  1. \(y=7x\)
  2. \(xy=15\)
  3. \(y=2x+1\)
  4. \(y=\dfrac{6}{x}+1\)

Solution:

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Answer:(a) Direct (b) Inverse (c) Neither (d) Neither

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