Question

The months cell phone plan, in dollars, is modeled by the function C(x)=0.6x+45, where x is the number of the text messages.what is the rate change represented by this situation

Answer 1

The slope of this line is 0.6, and this represents the cost per text message sent. For example, if you send 1 text message, you’ll pay a total of $30.60.

Explanation:

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