A-Level Maths: G5-04 Differentiation: Implicit Differentiation & Stationary Points

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[@keatonsohal2909]

Was hoping something like this would come up in the AQA exam but I guess we got Gary’s cave :/

[@dontbenosey7268]

When finding the second coordinate of the turning point, can we substitute into the original equation? Thnks

[@passionate_8068]

Yes, we made the y's equal to get the x, so substituting in either equation will be fine. y = 1 + 2x is much simpler to work with.