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A phone company charges for service according to the formula: C(n)=18+0.09n, where n is the number of minutes talked, and C(n) is the monthly charge, in dollars. The rate of change in this equation

Algebra for College Students

10th Edition

ISBN:9781285195780

Author:Jerome E. Kaufmann, Karen L. Schwitters

Publisher:Jerome E. Kaufmann, Karen L. Schwitters

Chapter10: Exponential And Logarithmic Functions

Section10.CR: Review Problem Set

Problem 60CR

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Question

A phone company charges for service according to the formula: C(n)=18+0.09n, where n is the number of minutes talked, and C(n) is the monthly charge, in dollars.

The rate of change in this equation is:

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