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Cost function

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Problem: A cell phone company charges a $50.00 activation fee plus $45.00 per month for unlimited calling within the network.

(1) Use function notation to represent the total amount paid A(x) for x months of service.

(2) Find A(4). Interpret the meaning of the answer in this situation.

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Ths solution shows how to write and solve the cost function for cell phone activation scenarios.

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The price just for the service is 45.00 per month, thus the cost of x months of ...

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