Where two values are linked by a common multiple. The key feature is that when you have none of one, you have none of the other.

Example: x and y are in direct proportion.

🔑 Key Direct Proportion Topics: Direct and Inverse Proportion

Where two values are linked by a common multiple. The key feature is that when you have none of one, you have none of the other.

Example: x and y are in direct proportion.

🔑 Key Direct Proportion Topics: Direct and Inverse Proportion

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