Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It’s also seen as a “gatekeeper” subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it’s impossible to move forward. It’s used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we’ll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

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Writing and using inequalities Watch the next lesson: https://www.khanacademy.org/math/algebra/linear_inequalities/structure-expressions-linear/v/dogs-cats-and-bears-in-a-pet-store-visual-argument?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/linear_inequalities/compound_absolute_value_inequali/v/absolute-value-inequalities-example-3?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express…

Solving systems of equations has many forms: the substitution method, the elimination method, and graphing. But for *inequalities*, solving systems can only be done by graphing. That’s because we need to shade above or below the line. The shaded region represents all the points that would satisfy (or, work) within the inequalities. Great music on…

We’re almost done with this first round of graphing now! We just have to learn about the relationships between parallel and perpendicular lines in terms of slope and other characteristics, so that we can more easily graph them, and write the equations for such lines using some nifty tricks. Opposite reciprocals, yo! Subscribe: http://bit.ly/ProfDaveSubscribe ProfessorDaveExplains@gmail.com…

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the de Moivre’s Theorem. Next video in the polar coordinates series can be seen at: http://youtu.be/NvBNDJeTn3Y

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