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GCSE Direct proportion (formulas)

Algebra
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Binary Operations
Calculus
Centre of Mass
Circular Motion
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Conics
Continuous Random Variables
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Estimation and Sampling
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Sequences and Series
Series
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Sketching Curves
Statics of a Particle
Statistical Approximations
Statistics
The Normal Distribution
Trigonometry
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Work, Energy and Power

In this tutorial, we learn all about direct proportion with several examples using formulas and we learn how to find the constant of proportionality.