Marissa must decide between one of two companies as her long-distance phone provider. Company A charges a monthly fee of $7.00 plus $0.06 per minute,while Company B does not have a monthly fee,but charges $0.08 per minute. (a) Find a linear function that relates cost, C, to total minutes on the phone,x,for each company. (b) Determine the number of minutes x for which the bill from Company A will equal the bill from Company B. (c) Over what interval of minutes x will the bill from Company B be less than the bill from Company A?
Marissa must decide between one of two companies as her long-distance phone provider. Company A charges a monthly fee of $7.00 plus $0.06 per minute,while Company B does not have a monthly fee,but charges $0.08 per minute. (a) Find a linear function that relates cost, C, to total minutes on the phone,x,for each company. (b) Determine the number of minutes x for which the bill from Company A will equal the bill from Company B. (c) Over what interval of minutes x will the bill from Company B be less than the bill from Company A?
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Marissa must decide between one of two companies as her long-distance phone provider. Company A charges a monthly fee of $7.00 plus $0.06 per minute,while Company B does not have a monthly fee,but charges $0.08 per minute. (a) Find a linear function that relates cost, C, to total minutes on the phone,x,for each company. (b) Determine the number of minutes x for which the bill from Company A will equal the bill from Company B. (c) Over what interval of minutes x will the bill from Company B be less than the bill from Company A?
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