Use the following information to answer the questions below.
Suppose that a cell-phone monthly rate plan costs the user 5 cents per minute beyond a fixed monthly fee of $20. This
implies that the relationship between monthly cost and monthly number of minutes is linear.
10
Question 1
1.
10
10
Write an equation in words that relates total monthly cost to monthly minutes
used. Explain how you found your answer.
Question 2
2.
Write an equation in symbols that relates the total monthly cost (y) to monthly
minutes used (x).
Question 3
3.
What is the cost for a month in which 182 minutes are used? Express your answer
in words in the context of this problem.
From EngageNY.org of the New York State Education Department. Grade 8 Mathematics Module 6, Topic C, Lesson 10. Internet. Available from https://www.engageny.org/resource/grade-8-mathemat...; accessed 14/Apr/2016.