SOLUTION: Choosing a phone plan in a college dormitory, each student has a choice of two phone companies. Company A charges $7.46 per month plus 13 cents a call and Company B charges $6.17

Question 1205963: Choosing a phone plan in a college dormitory, each student has a choice of two phone companies. Company A charges $7.46 per month plus 13 cents a call and Company B charges $6.17 per month plus 17 cents per call.
a. About how many phone calls do you make per month?

b. For each company, write an equation which represents the cost in a given month in terms of the number of phone calls.

c. Graph each equation you wrote in part (b). Be sure to label your graph.

d. When are the costs for both companies the same? When is Company A a better choice? When is Company B a better choice?

e. Decide which plan is best for which type of user. Why?

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Company A when equated with company B, for n number of calls

You know what to do!
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