The phone company, Splint, has a monthly cellular plan where the customer pays a flat monthly fee and then a cost of money per minute used on the phone. If the customer uses 330 minutes, the monthly cost is $106.50. If the customer uses 570 minutes, the monthly cost is $166.50. a. Find a linear model of the form y=mx+b, where x is the number of monthly minutes used, and y is the total monthly cost of the Splint plan. y= b. Using the equation from part a., find the total monthly cost if 823 minutes are used.
The phone company, Splint, has a monthly cellular plan where the customer pays a flat monthly fee and then a cost of money per minute used on the phone. If the customer uses 330 minutes, the monthly cost is $106.50. If the customer uses 570 minutes, the monthly cost is $166.50. a. Find a linear model of the form y=mx+b, where x is the number of monthly minutes used, and y is the total monthly cost of the Splint plan. y= b. Using the equation from part a., find the total monthly cost if 823 minutes are used.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.3: Lines
Problem 92E
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The phone company, Splint, has a monthly cellular plan where the customer pays a flat monthly fee and then a cost of money per minute used on the phone. If the customer uses 330 minutes, the monthly cost is $106.50. If the customer uses 570 minutes, the monthly cost is $166.50.
a. Find a linear model of the form y=mx+b, where x is the number of monthly minutes used, and y is the total monthly cost of the Splint plan.
y=
b. Using the equation from part a., find the total monthly cost if 823 minutes are used.
If 823 minutes are used, the total cost will be___________dollars.
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