In Exercises 5457, determine whether each statement makes
Chapter 4, Problem 4.1.315(choose chapter or problem)
In Exercises 5457, determine whether each statement makes sense or does not make sense and explain your reasoning. A telephone calling plan charges $4 per month plus 7 per minute, so I modeled these conditions using y 0.07 4x, where y is the monthly charge when x minutes of calls are made.
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