Explore how to work out whether two variables are directly proportional with BBC Bitesize Maths. For students between the ages of 11 and 14. Work out whether quantities are inversely proportional, and ...
The value \(e\) is directly proportional to \(p\). When \(e = 20\), \(p = 10\). Find an equation relating \(e\) and \(p\). \(e \propto p\) \(e = kp\) \(20 = 10k\) so ...
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