Solve Linear Systems by Substitution

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7.2 Solve Linear Systems by Substitution

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Presentation transcript:

Solve Linear Systems by Substitution Section 7.2

Objectives: Solve systems of linear equations by substitution

Key Vocabulary: System of linear equations

Example 1: Solve the linear system using the substitution method.

Example 2: Solve the linear system.

#1: Solve the linear system using the substitution method.

#2: Solve the linear system using the substitution method.

#3: Solve the linear system using the substitution method.

Cost per month (dollars) Example 3: Many businesses pay website hosting companies to store and maintain the computer files that make up their websites. Internet service providers also offer website hosting. The costs for website hosting offered by a website hosting company and an Internet service provider are shown in the table. Find the number of months after which the total cost for website hosting will be the same for both companies. Company Set-up fee (dollars) Cost per month (dollars) Internet service provider 10 21.95 Website hosting company None 22.45

Homework Assignment Section 7.2 Worksheet