The piecewise function below gives the cost f(x) of x text messages per month. Which would be
Question:
The piecewise function below gives the cost f(x) of x text messages per month. Which would be the least expensive plan for a person who had d text messages: a plan in which c = 31 or a plan in which c = 40? Explain.
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f(x) = { C c+p(x-d) when x ≤ d when x > d
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Related Book For
Financial Algebra Advanced Algebra With Financial Applications
ISBN: 9781337271790
2nd Edition
Authors: Robert Gerver, Richard J. Sgroi
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