Mathematics for IGCSE & O level - Proportion (Section 2 - No. 38)
What are the key points from the key points section of the image?
The symbol ∝ means "is proportional to"
y = ax^2 is for direct proportion.
y = k/x represents inverse proportion
For inverse proportion, you can use the fraction version y=k/x.
Explanation
Correct. The key points are a summary of proportion concepts, and these choices correctly summarize the info.
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