I'm studying concavity and the second derivative test and it is starting to become more confusing because the second derivate is the slope of the slope of the original function. Do you need to become so familiar with this that you have a "picture" of the graphs in your head? I mean, one can just plug in numbers and test away without understanding the behavior of the graphs right? :uhh:(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: How do you know you understand calculus?

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