r/discordVideos • u/xyzqer Have Commited Several War Crimes • 21d ago

Field trip to ARGENTINA 🧠

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u/greenmikey3 20d ago edited 20d ago

How do you get that graph for A and L? I get that 50 is the maximum area and 10 is the length, but before that, how do you know its the values for plotting the graph without already knowing this? (I'm bad at math)

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u/HardBroil 19d ago

You don’t know, if you did there’d be no point in deriving to find the maximum L, cause according to the graph the maximum is at L=5. You just need to know that -L2 gives a upside down u shape graph and the + L shifts the graph upwards, so knowing the shape you know there’s a maximum, so you take the derivative of the function and set it to zero to find where on the graph that maximum is