GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Inverse Proportionality - Explained

The video tutorial explains how the temperature of ocean water is inversely proportional to depth below 900 meters, using the formula T = 4500 / X. It demonstrates calculating temperature differences at depths of 1200 and 2500 meters, resulting in a difference of 1.95 degrees Celsius. The tutorial also guides on identifying the correct graph that represents this inverse relationship, emphasizing graph D as the correct choice.

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