Curated Video
Solving Linear Equations with Variables on Both Sides
In this video lesson, we will continue to use the Five Step process to solving a linear equation. Equations in this lesson will have variables on both sides. Equations will require using the distributive property, combining like terms,...
Curated Video
Solving Simple Inequalities Using Additive and Multiplicative Inverses
In this video, the teacher explains how to solve simple inequalities using additive and multiplicative inverses. They review the addition and multiplication properties of equality and then apply them to inequalities. They also discuss...
Curated Video
Graphing Linear Inequalities in Two Variables
In this video, a teacher explains how to graph linear inequalities in two variables and use them to solve real-life problems. The teacher covers topics such as the solution set, boundary lines, test points, and determining solutions. The...
Curated Video
Writing Linear Inequalities to Determine Profit in Computer Sales
In this video, the teacher explains how to represent constraints on solutions by writing linear inequalities. They use examples and visuals to demonstrate the difference between inequality symbols, the importance of correctly...
Why U
Algebra 19 - Linear Equations y = mx
Equations of the form y = mx describe lines in the Cartesian plane which pass through the origin. The fact that many functions are linear when viewed on a small scale, is important in branches of mathematics such as calculus.
Why U
Algebra 73 - Factoring Quadratics by inspection - part 1
Factoring a quadratic expression into a pair of linear expressions is one of the primary methods used to solve quadratic equations. In the previous lectures we examined "special product" quadratic expressions whose factors can be easily...
Why U
Algebra 72 - Solving Perfect Square Quadratic Equations
Factoring a quadratic expression into a pair of linear expressions is one of the primary methods used to solve quadratic equations. In the previous lecture we examined one form of "special product" quadratic expression whose factors can...
Why U
Algebra 71 - Solving Difference of Squares Quadratic Equations
Factoring a quadratic expression into a pair of linear expressions is one of the primary methods used to solve quadratic equations. The trick is to find a pair of linear expressions which when multiplied together, produce the quadratic...
Curated Video
Solving Compound Inequalities
In this video, the teacher explains how to solve compound inequalities using additive and multiplicative inverses. They demonstrate step-by-step examples and provide tips for checking the solutions. The lesson covers both "or" and "and"...
Curated Video
Comparing Solution Methods for Equations and Inequalities
This video explains the similarities between solving linear equations and inequalities. Through examples and step-by-step explanations, we show how to solve equations and inequalities using simple operations. The video also emphasizes...
Curated Video
Adding Equations in a System: Using the Addition Property of Equality
Learn how adding two equations together in a system of equations results in an equation with the same solution. The video also emphasizes the importance of testing the solution in both equations to ensure it satisfies both.
Curated Video
Solving Systems of Linear Equations by Substitution
In this video, the teacher explains how to solve systems of linear equations using substitution. They provide examples and walk through the steps of substituting variables to find the solution. The video also emphasizes the importance of...
Curated Video
Determine Associations by Comparing Conditional Relative Frequencies
This video explains how to determine associations between the class of passengers on the Titanic and their survival rates. They demonstrate how to calculate conditional relative frequencies and caution against making assumptions based...
Math Fortress
Algebra I: Grouping Symbols (Level 2 of 2)
This video goes over a couple of examples showing how to simplify and evaluate algebraic expressions with and without grouping symbols.
Press Association
Barrister 'concerned' whether Boris Johnson will comply with Benn Act
Jo Maugham QC, speaking outside the Court of Session in Edinburgh, after lawyers for Boris Johnson's government claimed the Prime Minister would abide by the Benn Act and request an Article 50 extension. Legal action launched at the...
Virtual Nerd
Virtual Nerd: What Is a Theorem?
A theorem is a general mathematical statement that can be used to help solve all sorts of problems. Watch this tutorial for an introduction to theorems. [4:11]