A phone company charges $0.39 per minute for the first 10 minutes of a long-distance phone call and $0.12 per minute for every minute after that. a) Find the piecewise cost function C(x) as a function of length x of the phone call in minutes. b) How much will the phone company charge for a 15 minute long-distance phone call?

A phone company charges $0.39 per minute for the first 10 minutes of a long-distance phone call and $0.12 per minute for every minute after that. a) Find the piecewise cost function C(x) as a function of length x of the phone call in minutes. b) How much will the phone company charge for a 15 minute long-distance phone call?

Algebra for College Students

10th Edition

ISBN:9781285195780

Author:Jerome E. Kaufmann, Karen L. Schwitters

Publisher:Jerome E. Kaufmann, Karen L. Schwitters

Chapter9: Polynomial And Rational Functions

Section9.4: Graphing Polynomial Functions

Problem 43PS

See similar textbooks