APPLICATIONS IN MATH A
APPL IN SEQ MATH NAME______________________
COMPARING CELL PHONE PLANS
What are some of the reasons why people feel the need to have a cell/smartphone?
Using family plan pricing policies from print ads and/or the internet, along with our knowledge of lines of best fit, determine the optimal cell phone plan for your needs.
Plan I Sprint Best Shared Family Plan
|Features 4G LTE |Cost |
|Smartphone: iPhone 6s 16GB |$0 down, $27/mo. For 24 mos. = $648 |
|Price for 4 smartphone lines |$120.00/mo |
| | |
|Data |40G shared |
| | |
|Voice |UNLIMITED |
|Messaging |UNLIMITED |
|Activation Fee |$36/line |
|Contract Term: |2 year |
|Cancellation Fees |$350 to $100 based on months remaining on contract |
|Other Taxes & Fees | |
Free International texting from US to more than 180 countries
Mobile Hotspot
Plan II AT&T Mobile Share Plan
|Features 4G LTE |Cost |
|Smartphone: iPhone 6s 16GB |$0 down, $21.67/mo for 30 mos=$650 |
|Price for all devices on plan |$175.00/mo |
| | |
|Data |25GB shared |
|Extra Data Cost |$15/1 GB |
|Voice |UNLIMITED |
|Messaging |UNLIMITED |
|Activation Fee |Up to $45/line |
|Contract Term: |2 year |
|Cancellation Fees: |$325 and $10 less each full month completed under contract |
|Other Taxes & Fees | |
Mobile Hotspot included
Rollover data: Unused data qualifies for rollover to the following 30 days ONLY. Any unused data (GB) then expires.
APPL IN SEQ MATH PAGE 2
Plan III Verizon’s More Everything Plan
|Features 4G LTE |Cost |
|Smartphone: iPhone 6s 16GB |$27.08/mo for 24 mos=$667 |
|Price for up to 4 smartphone lines |$255.00/mo |
|Additional smartphone line |$20.00/mo |
|Data |25GB shared |
|Extra Data Cost |$15/1 GB |
|Voice |UNLIMITED |
|Messaging |UNLIMITED |
|Activation Fee |None |
|Contract Term: |2 years |
|Cancellation Fees: |$350 and $10 less each full month completed under contract |
|Other Taxes & Fees: | |
Mobile Hotspot included
Let us write a linear equation using the information about the three phone plans.
Let y = yearly cost of a cell phone
Let m= rate per month
Let x = number of months
Let b = fixed cost of the phone
1. Sprint AT&T Verizon
[pic]120x+648 [pic] [pic]
2. Enter each of the equations into the graphing calculator. Set the WINDOW and TBLSET. Look at the TABLE. Record the table from the graphing calculator below. GRAPH.
|# of Months (x) |Sprint cost ([pic]) |AT&T cost ([pic]) |Verizon cost ([pic]) |
|0 |$648 |$650 |$667 |
|12 | | | |
|24 | | | |
|36 | | | |
|48 | | | |
|60 | | | |
APPL IN SEQ MATH PAGE 3 NAME____________________
3. Based on your table and graph of the three plans, what do you notice? Do any of the plans look similar? Why do you think so?
4. Aside from cost, what other factors would be important when deciding which cell phone plan is best for you?
5. Which plan appears to provide cell phone users with the best value? Why do you think so?
6. Which plan would you choose and why?
Using the November 20, 2015 Walmart ad, write a linear function for the given plan and phone.
Let y = yearly cost of a cell phone
Let m or a= rate per month
Let x = number of months
Let b = fixed cost of the phone
Y=______________________________________
What would the TOTAL COST of the cell phone plan for 2 years or 24 months? (If x=24, then y=?)
Y=___________________________=
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