Part of ICSE Class 9 Mathematics on Lipi
About this chapter
Direct and Inverse Proportion · ICSE Class 9 Mathematics. Direct Proportion Relationships: y ∝ x means y = kx; y ∝ x² means y = kx²; y ∝ √x means y = k√x, where k is the constant of proportionality.
ICSE · Class 9 · Mathematics🔒 Preview
Direct and Inverse Proportion
Covers Summary, Central idea, Word meanings, Themes, and more.
What this chapter covers
- Summary
- Central idea
- Word meanings
- Themes
- Grammar notes
- Writing practice
- Think deeper
- Past questions
The full lesson opens all 8 sections: summaries, word meanings and model answers, in the language of the book.
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