Shelley wants to purchase a cell phone package, which includes a free phone. The cost of the package is $0.10 per minute, for the number of minutes she uses the phone, plus a base rate of $89.00.

The function would be linear because the rate of change is constant.

Step-by-step explanation:

Given

per minute

See attachment for complete question and options

First, we write the function that calculates the cost (C(t)) for t minutes.

This is calculated as:

Rewrite as:

A function that has the above format is referred to as a linear function which has the general format

Where

m represents the slope/rate and it is constant

From the list of given options, (a) is correct.

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