Sal introduces the concept of concavity, what it means for a graph to be "concave up" or "concave down," and how this relates to the second derivative of a function. Created by Sal Khan. Note: All Khan Academy content is available for free at (www.khanacademy.org)

Taking the derivative of f(x)=x_-12x+2 and graphing the derivative, so we can tell when f is increasing or decreasing, and where is its relative extremum points. Created by Sal Khan. Note: All Khan Academy content is available for free at (www.khanacademy.org)

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Watch Sean go through this question to show you how to get full marks.
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Watch Sean go through this question to show you how to get full marks.
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Watch Sean go through this question to show you how to get full marks.
Studyclix makes exams easier. Check out all our study tools (past exam questions by topic, quizzes, flashcards, videos and notes and more!) on www.studyclix.ie.

Watch Sean go through this question to show you how to get full marks.
Studyclix makes exams easier. Check out all our study tools (past exam questions by topic, quizzes, flashcards, videos and notes and more!) on www.studyclix.ie.

Watch Sean go through this question to show you how to get full marks.
Studyclix makes exams easier. Check out all our study tools (past exam questions by topic, quizzes, flashcards, videos and notes and more!) on www.studyclix.ie.

Watch Sean go through this question to show you how to get full marks.
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Watch Sean go through this question to show you how to get full marks.
Studyclix makes exams easier. Check out all our study tools (past exam questions by topic, quizzes, flashcards, videos and notes and more!) on www.studyclix.ie.

Watch Sean go through this question to show you how to get full marks.
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Watch Sean go through this question to show you how to get full marks.
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