An electric company charges $12.75 per month plus $0.49 per kilowatt-hour (kWh) for the first 200 kWh used per month and $0.34 per kWh for anything over 200 kWh used. a. How much is owed for using 130 kWh per month? b. How much is owed for using 250 kWh per month? c. Write a piecewise function, C(x), where C is the cost charged per month as a function of the monthly kilowatt-hours used, x. d. Sketch the piecewise function.

An electric company charges $12.75 per month plus $0.49 per kilowatt-hour (kWh) for the first 200 kWh used per month and $0.34 per kWh for anything over 200 kWh used. a. How much is owed for using 130 kWh per month? b. How much is owed for using 250 kWh per month? c. Write a piecewise function, C(x), where C is the cost charged per month as a function of the monthly kilowatt-hours used, x. d. Sketch the piecewise function.

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter2: Functions And Graphs

Section2.1: Functions And Function Notation

Problem 9SC

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The half-life of plutonium-244 is 80,000,000 years. Find function gives the amount of carbon-14 remaining as a function of time, measured in years.
Use your schools library, the Internet, or some other reference source to find real-life applications of approximations of functions.
What is the difference between the input and the output of a function?

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