Math Problem Statement
A cell phone plan charges 46.75 per month plus 14.06 in taxes, plus 0.30 per minute for calls beyond the 500-minute monthly limit. Write a piecewise-defined function to model the monthly cost c(x) (in $) as a function of the number of minutes used for the month.
Solution
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Math Problem Analysis
Mathematical Concepts
Piecewise Functions
Linear Functions
Algebra
Formulas
c(x) = 60.81 if x <= 500
c(x) = 60.81 + 0.30(x - 500) if x > 500
Theorems
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Suitable Grade Level
Grades 9-12
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