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Back to 12.1 Linear Equations

12.1 Exercise 6

Avg difficulty 2.5

Ethan repairs household appliances such as dishwashers and refrigerators. For each visit, he charges $25 plus $20 per hour of work. A linear equation that expresses the total amount of money Ethan earns per visit is y = 25 + 20x.

What are the independent and dependent variables? What is the y-intercept, and what is the slope? Interpret them using complete sentences.

OpenStax Statistics, 12.1 Linear Equations, exercise 6

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