I advisewhen you come across an algorithm or any other concept (maybe math idea) in an editorial you don't know about to immediately find and read an article about it, implement in the context of this problem, and then continue just moving down the problem set tab.You can usually find ...
She also noticed that the student was misreading the graph, and that they were actually identifying where the function f had a maximum when they “pinpoint[ed] … it changes from positive to negative.” Further, Ida recognized that when the student said “changing concavity” they were ...
An inflection point is where a function changes concavity and where the second derivative of the function changes signs. Take the first and second derivative of the function using the power rule. Set the second derivative equal to 0 to find the candidate, or possible, inflection points. Plug ...