# Second derivatives (implicit equations): evaluate derivative | AP Calculus AB | Khan Academy

Given the first derivative of an implicit equation in x and y, evaluate the second derivative at a certain point. Problem taken from the 2015 AP Calculus AB exam. Click here to see more videos: https://alugha.com/KhanAcademy View more lessons or practice this subject at https://bit.ly/2vQTiGC Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://bit.ly/2wEUtZK Volunteer here: https://bit.ly/39zRRLe

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