Countdown to Exams - Day 35 - Proportion
On Day 35, we are focusing on Proportion. Remember that there are two types of proportion; Direct and Inverse. As one value increases, the other increases at the same rate is an example of direct proportion (buying cups of coffee). As one value increases, the other decreases at the same rate is an example of inverse proportion (adding more people to paint a wall). When you are asked more challenging questions you will have to work out what the rate of change is (written with a k).
In the video below, Matt explains the two types of proportion and how to calculate the rate of change.
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