Positive and negative intervals of polynomials | Polynomial graphs | Algebra 2 | Khan Academy скачать в хорошем качестве

Positive and negative intervals of polynomials | Polynomial graphs | Algebra 2 | Khan Academy

Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/math/alge... If we know all the zeros of a polynomial, then we can determine the intervals over which the polynomial is positive and negative. This is because the polynomial has the same sign between consecutive zeros. So all we need to do is check is interval that is between two consecutive zeros (or before the smallest zero and after the largest zero). View more lessons or practice this subject at https://www.khanacademy.org/v/polynom... 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://www.khanacademy.org/donate?ut... Volunteer here: https://www.khanacademy.org/contribut...