Parallel lines have the same slope and no points in common. However, it is not always obvious whether two equations describe parallel lines or the same line.

Linear equations can be used to solve many types of real-world problems. In this episode, the water depth of a pool is shown to be a linear function of time and an equation is developed to model its behavior. Unfortunately, ace Algebra...

Perpendicular lines have slopes which are negative reciprocals of each other, but why?

In this lesson, students will learn how to estimate solutions to systems of equations by graphing when both equations are in slope intercept form. They will understand the concepts of slope intercept form and how to graph linear...

In this lesson, students will learn how to solve systems of equations using the elimination method when opposite coefficients are present. The video explains the concept of opposite coefficients and how they allow us to cancel out...

In this lesson, mathematicians will learn how to solve systems of two linear equations using the elimination method. By manipulating the equations and eliminating variables, students can find the values of each variable and determine the...

When should a system of equations with multiple variables be used to solve an Algebra problem, instead of using a single equation with a single variable?

Systems of three linear equations in three variables can be solved using the same techniques of substitution and elimination used to solve systems of two linear equations in two variables.

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...

This video is about pair of linear equation problem solving based on Cross multiplication Method

Systems of two equations in x and y can be solved by adding the equations to create a new equation with one variable eliminated. This new equation can then be solved to find the value of the remaining variable. That value is then...

In this video lesson, the teacher explains how to estimate solutions to systems of equations by graphing when both equations are in standard form. They demonstrate how to find the x and y-intercepts of each equation and graph them on a...

In this video, the teacher explains the difference between linear and quadratic equations and how to model different situations using each. They provide examples of linear expressions and equations, as well as quadratic expressions and...

How do we create linear equations to solve real-world problems? This video explains the process.

In this video, the teacher explains how to determine the number of solutions to a pair of linear equations using tables and graphs. The students are shown examples and taught to analyze the differences in values and the intersections of...

In this lesson, students will learn how to solve a system of linear equations by substitution. They will understand how to replace one variable with another in order to simplify the equations and find the values of the variables.

In this video, mathematicians learn how to solve systems of two linear equations using the substitution method. The instructor explains the concept using real-life examples, such as ticket prices and fruit costs. By substituting values...

In this lesson, we will learn how to estimate systems of equations by graphing when one equation is in slope intercept form and the other equation is in standard form. We will review the different forms of linear equations and how to...

In this video, mathematicians learn how to solve systems of two linear equations with infinitely many solutions by graphing and finding the slopes of the lines. The video explains that when the two equations represent the same line, any...

In this lesson, students will learn how to solve systems of equations algebraically by substitution. The video explains the concept of substitution and demonstrates how to substitute values into equations to find the solutions.

This video explains how to represent constraints on solutions by writing systems of linear equations. It provides examples and walks through the process of solving these equations using different methods such as graphing, tables, and...

In this video, the teacher explains how to solve a system of linear equations using the addition elimination method. They demonstrate the process step by step and provide examples to illustrate the concept. By following this method,...

In this lesson, students will learn about reflections in linear equations. They will explore how the functions F of X and G of X are alike and different, focusing on the slope and Y-intercept. Through examples and a table of values,...

In this video, students learn how to identify the value of K in translations by exploring different representations of linear equations. They are taught that K represents a constant value in the algebraic representations of...