8.3 Systems of Equations

Beginning Lesson

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You're So Fined

How long does it take to pay off municipal fines? Students use linear equations and solve linear systems to examine what happens when people are unable to pay small municipal fines. They also discuss what can happen to the most financially vulnerable citizens when cities rely heavily on fines for revenue.

Topic: Expressions and Equations (EE)

Middle Lesson

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Flicks

Which movie rental service should you choose? Students develop a system of linear equations to compare Redbox, AppleTV, and Netflix, and determine which is the best plan for them.

Topic: Expressions and Equations (EE), Functions (F)

End Lesson

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Here Comes the Sun

Are solar panels worth the cost? Students set up and solve systems of linear equations to compare different electricity plans and determine when each option is the least expensive.

Topic: Expressions and Equations (EE)