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Chapter 12: Q. 12. 4 (page 682)

Ethan repairs household appliances like dishwashers and refrigerators. For each visit, he charges \(25plus \)20per 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-interceptand what is the slope? Interpret them using complete sentences.

Short Answer

Expert verified

xis independent andyis dependent variable.y-intercept=25.slope=20

Step by step solution

01

Given information

A linear equation that expresses the total amount of money Ethan earns per visit isy=25+20x.

02

Explanation

From the given information, xis independent variable and yis dependent variable.

y-intercept=25(a)and slope is 20(b)which is written from the known equation of straight line y=a+bx. Therefore, Ethan repairs household appliances for20dollars per hour of work.

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