This video demonstrates how to determine if lines are perpendicular given the equations. There are three equations listed but they are not all in slope-intercept form. Practice problems available. [3:29]

This video demonstrates how to determine if lines are parallel given the equations. There are three equations listed and the lines that are parallel will contain the same slope. Practice problems available. [3:48]

This video demonstrates how to determine if lines are parallel given the equations. There are three equations listed but they are not all in slope-intercept form. Practice problems available. [3:03]

This video demonstrates how to solve word problems related to a person's age by setting up and solving equations based on the information given in the problem. There are two sample word problems. [7:14]

This video begins by finishing the final problem in the "Age Word Problems 2" video. Then it continues to demonstrate how to solve word problems related to a person's age by setting up and solving equations based on the information given...

Video demonstrating how to write and solve equations and inequalities from real-world situations. Also included are examples of testing solutions to inequalities. This video is also found in the strand Algebra: ck12.org. [16:11]

This video demonstrates how to solve several test questions related to linear equations and linear inequalities. It demonstrates solving equations, graphing linear inequalities in two variables, and graphing linear equations. [11:42]

This video demonstrates how to solve word problems related to a person's age by setting up and solving equations based on the information given in the problem. There are two sample word problems. [9:57]

This video shows how to set up a linear equation to determine the value of unknown consecutive integers. There are two examples given that also demonstrate how to solve these equations. [9:56]

This video demonstrates how to determine if lines are parallel given the equations. There are three equations listed but they are not all in slope-intercept form. Practice problems available. [2:42]

To graph a linear equation, you first need to make a table of values to plot. This tutorial will teach you how to set up this table of values using an example. [5:41]

Verifying that a point is part of the equation of a line is very simple! Follow the steps in this quick tutorial to learn how! [1:35]

This video demonstrates how to solve two different word problems that involve linear relationships. In order to solve the problem an equation must be written and then the video demonstrates how to solve for a particular variable in the...

This video demonstrates how to write a proportion by setting two ratios equal to each other. The video does not demonstrate how to solve the proportions, only set them up. This video is also found in the strand Algebra: Ratios and...

This video demonstrates how to create a direct variation model, or a linear equation, given a word problem that deals with rate of change. It also shows how to solve the equation and graph the direct variation model. Practice problems...

This video demonstrates how to write a linear equation in point-slope form, slope-intercept form, and standard form given two points on the line. [7:56]

This video demonstrates how to set up an equation for direct variation and solve for the variable "k" which represents the constant of proportionality. [1:44]

This video demonstrates how to set up a linear equation in order to find three consecutive odd integers that add up to 231. It also shows how to solve the equation. [4:33]

This video demonstrates how to solve a word problem involving a direct variation. It shows how to set up a linear equation for a directly proportional relationship and solve for the constant of proportionality. [2:02]

In this video lesson students learn to translate a word problem into a linear equation and then solve that equation.

There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve a system of linear equations by combining the equations together in order to eliminate one of the variables. Then, see how to...

There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve such a system by combining the equations together in a way so that one of the variables is eliminated. Then, see how to find...

This lesson explores how to determine if a linear system of equations has no value pairs in common. It is 7 of 10 in the series titled "Simultaneous Linear Equations with No Solution."

This lesson introduces the slope intercept form of a linear equation. It is 5 of 6 in the series titled "Slope Intercept Formula."