Media4Math's Video Library is a collection of videos on key topics in prealgebra and algebra. Each video includes several workedout examples that clearly explain the key concept. All videos include realworld applications of math.This is a growing collection of resources, so keep coming back!(Want to learn more about our subscription packages? Click here.)

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Closed Captioned Video: Algebra Applications: Systems of Equations 
Closed Captioned Video: Algebra Applications: Systems of EquationsIn this episode of Algebra Applications, students explore various scenarios that can be explained through the use of systems of equations. Such disparate phenomena as profit and loss, secret codes, and ballistic missile shields can be explored through systems of equations. 
Applications of Linear Systems, Solving Systems of Equations  
Closed Captioned Video: Algebra Applications: Systems of Equations, 1 
Closed Captioned Video: Algebra Applications: Systems of Equations, Segment 1: Profit and LossProfit and loss are the key measures in a business. A system of equations that includes an equation for income and one for expenses can be used to determine profit and loss. Students solve a system graphically. 
Applications of Linear Systems, Solving Systems of Equations  
Closed Captioned Video: Algebra Applications: Systems of Equations, 2 
Closed Captioned Video: Algebra Applications: Systems of Equations, Segment 2: EncryptionSecret codes and encryption are ideal examples of a system of equations. In this activity, students encrypt and decrypt a message. 
Applications of Linear Systems, Solving Systems of Equations  
Closed Captioned Video: Algebra Applications: Systems of Equations, 3 
Closed Captioned Video: Algebra Applications: Systems of Equations, Segment 3: Ballistic MissilesA ballistic missile shield allows you to shoot incoming missiles out of the sky. Mathematically, this is an example of a linearquadratic system. Students graph such a system and find the points of intersection between a line and a parabola. 
Applications of Linear Systems, Solving Systems of Equations  
VIDEO: Algebra Applications: Systems of Equations 
VIDEO: Algebra Applications: Systems of EquationsIn this episode of Algebra Applications, students explore various scenarios that can be explained through the use of systems of equations. Such disparate phenomena as profit and loss, secret codes, and ballistic missile shields can be explored through systems of equations. 
Applications of Linear Systems, Solving Systems of Equations  
VIDEO: Algebra Applications: Systems of Equations, 1 
VIDEO: Algebra Applications: Systems of Equations, Segment 1: Profit and LossProfit and loss are the key measures in a business. A system of equations that includes an equation for income and one for expenses can be used to determine profit and loss. Students solve a system graphically. 
Applications of Linear Systems, Solving Systems of Equations  
VIDEO: Algebra Applications: Systems of Equations, 2 
VIDEO: Algebra Applications: Systems of Equations, Segment 2: EncryptionSecret codes and encryption are ideal examples of a system of equations. In this activity, students encrypt and decrypt a message. This is part of a collection of videos from the Algebra Applications video series on the topic of Systems of Equations. 
Applications of Linear Systems, Solving Systems of Equations  
VIDEO: Algebra Applications: Systems of Equations, 3 
VIDEO: Algebra Applications: Systems of Equations, Segment 3: Ballistic MissilesA ballistic missile shield allows you to shoot incoming missiles out of the sky. Mathematically, this is an example of a linearquadratic system. Students graph such a system and find the points of intersection between a line and a parabola. 
Applications of Linear Systems, Solving Systems of Equations 