In this lesson, students make observations about the motion of a boat going up and down the river. They will solve the system of equations algebraically and graphically.

Take a closer look at the SAT Math Test. Math questions on the test fall into different categories called "domains." One of these domains is Heart of Algebra. It focuses strongly on algebra -- especially on the areas of the subject that...

This lesson is a review of problems with systems of inequalities. Many of the questions involve real world scenarios as word problems which the reader must decipher and resolve.

Also known as the Elimination Method, the Addition Method is used in solving several systems of equations. This step-by-step demonstration is a helpful resource to use when learning about solving systems.

The online course consists of educational materials about differential equation. Video lectures, readings, syllabus, exams, interactive mathlets, and assignments with solutions are included.

In Spanish. In this interactive unit learn how to identify, graph and solve linear equations with two unknowns.

[Free Registration/Login Required] This flipchart shows students how to solve systems of linear equations using elimination.

The purpose of this task is to give young scholars the opportunity to make connections between equations and the geometry of the graphs. Aligns with A-REI.C.7and A-REI.D.10.

[Free Registration/Login may be required to access all resource tools.] Learn how to write an equation given two points

[Free Registration/Login may be required to access all resource tools.] Learn how to write the equation of a line given the slope and any point.

Determine the number of hot dogs needed in order to make a profit with little waste. Adobe required.

Determine the profits and the efficiency of the shoe company.

Nonlinear systems are solved using the algebraic methods of substitution and addition/subtraction. Learn how these methods work through detailed examples.

[Free Registration/Login may be required to access all resource tools.] This lesson covers simplifying matrix expressions using all the previously learned matrix operations.

The necessary steps to augment a matrix are explianed by using a problem presented by a student.

Cramer's Rule for solving a system of equations is presented here using an example of a system in three variables with three equations. The "everything," approach of solving for all three variables is shown as well as the "selective,"...

In this lesson, students can use the CBR ranger to model walking distance over time. They will walk away from the sensor, back towards the sensor and finally away from the sensor over an interval of 10 seconds. The result should be 3...

This task requires students to recognize the pairs of linear equations in two variables that would be used to solve a given system of equations. Aligns with A-CED.A.3.

This site from the Richland Community College provides the detailed lecture notes to a college algebra course, complete with equations and definitions. Content ranges from "functions and their graphs" to "conics and parametric equations."

Practice the connection between the graphical representation of equations and their algebraic solutions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

[Free Registration/Login Required] This flipchart provides guided practice with word problems involving systems of equations and gives a brief review on solving systems of equations.

Learners identify the graphs of a system of linear equations and then solve the system. The practice exercise is available in PDF format.

Students solve a system of linear equations using the elimination method. The practice exercise is available in PDF format.

In this task, students are asked to construct equations in two variables to determine whether a loose coin beside a ticket box belongs with the money collected for tickets. They must then explain their reasoning. Aligns with A-CED.A and...