Overview
Formulas, Direct/Inverse Proportion

Direct and Inverse Proportion Formula

 Video Tutorial

Key Aspects:
  • Direct Proportion Formula
  • Inverse Proportion Formula
  • Real-life Examples and Visualisation
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 Revision Cards

1) Direct Proportion Formula: y = qx

Diagram illustrating direct proportionality, showing prices increasing as quantity increases, and the formula y = 4x.

2) Inverse Proportion Formula: xy = k

Inverse proportion concept with car and train speeds showing how doubling one quantity halves the other, illustrated with a formula.

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 Exercises

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