Proportion Cheat Sheet by Cheat

Inverse proportion is when one value increases by a certain amount and the other value decreases by the same amount.

Video 1

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By: Fuse School

Video 2

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By: Corbett Maths

Direct Proportion is when both values increase at the same rate.

Example 1:

The cost of the vegetables is directly propor­tional to weight.

The more the weight of the vegeta­bles, the more they will cost.

Example 2:

The number of pens is directly propor­tional to the price.

The more the number of pens, the more they cost.

Video 1

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By: Corbett Maths

Video 2

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By: MME (Maths Made Easy)