A 17-course Topic from Khan Academy

Algebra I

Learn algebra 1—linear equations, functions, polynomials, factoring, and more.
From Khan Academy 55 English Mathematics
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Courses in this Topic

Listed in the order in which they should be taken

Starts Course Information

On Demand

This topic is an overview of the fundamental ideas and tools of algebra.This course contains 10 segments:Overview and history of algebraDid you realize that the word "algebra"...

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Learn how to solve linear equations that contain a single variable. For example, solve 2(x+3)=(4x-1)/2+7.This course contains 11 segments:Algebraic equations basicsExplore what it...

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On Demand

Learn how to solve linear inequalities with a single variable. For example, solve -3(x+1)>2x-7. Learn how to solve compound inequalities. For example, solve 2x+1>3 AND -x-5This...

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Modeling is an amazing world, full of challenges. In this topic, we will start to think about some general modeling concerns, before we dive into modeling situations with...

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Learn about linear equations that contain two variables, and how these can be represented by graphical lines and tables of values.This course contains 10 segments:Two-variable...

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Functions are mathematical entities that assign unique outputs to given inputs. Sounds simple? Think again! In this topic you will evaluate, graph, analyze, and create various...

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Solve various word problems that involve real world relationships that can be represented by linear equations or functions.This course contains 4 segments:Interpreting linear...

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Learn about the various ways in which we can define sequences; Use and construct arithmetic and geometric sequences.This course contains 6 segments:Introduction to arithmetic...

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Learn how to interpret solutions to systems of linear equations and solve them.This course contains 7 segments:Introduction to systems of equationsLearn what "systems of...

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On Demand

In this topic, we study inequalities like x+2y>5 and graph them. This helps us see their solutions. We also explore systems of inequalities (multiple inequalities at the same...

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Learn how to solve absolute value equations and how to graph absolute value functions.This course contains 2 segments:Graphs of absolute value functionsLearn how to graph absolute...

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On Demand

Learn about expressions with rational exponents like x^(2/3), about radical expressions like √(2t^5), and about the relationship between these two forms of representation. Learn...

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On Demand

Learn how to construct, analyze, graph, and interpret basic exponential functions of the form f(x)=a*r^x.This course contains 6 segments:Exponential vs. linear growthLearn about...

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Learn how to add, subtract, and multiply polynomial expressions. For example, write (2x+3)(x-1) as 2x²+x-3.This course contains 9 segments:Intro to polynomialsLearn about...

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On Demand

Learn how to write polynomial expressions as the product of linear factors. For example, write x^2+3x+2 as (x+1)(x+2).This course contains 11 segments:Introduction to...

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On Demand

Learn how to solve quadratic equations, and how to analyze and graph quadratic functions.This course contains 10 segments:Parabolas introLearn what parabolas are and about their...