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Proportionality Equations — Edexcel GCSE Maths 1MA1
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Mathematics
Edexcel GCSE Mathematics
Ratio, Proportion and Rates of Change
Ratio and Proportion Fundamentals
Proportionality Equations
Edexcel GCSE Mathematics · 1MA1
Proportionality Equations
What you need to know
Understand that
X
X
X
being inversely proportional to
Y
Y
Y
is equivalent to
X
X
X
being proportional to
.
Revision notes
1
Proportionality Equations
4 key terms
Practise with past papers
Key terms & definitions
Previous subtopic
Geometric Comparison
Next subtopic
Rates of Change and Graphs
1
Y
\frac{1}{Y}
Y
1
Construct and interpret equations that describe direct and inverse proportion.
