Monday, 11/30/09 SWBAT

1
Monday, 11/30/09SWBAT analyze cell
phone plans

• Agenda
• WU (5 min)
• Answer questions (5 min)
• 1 cell phone example (10 min)
• Work on projects (30 min)
• Warm-up
• On the yellow paper on your desk, with the person
  next to you, write down what questions you have
  regarding the cell phone project (need to knows.)
• -It can be a logistical question or a math
  concept question.
• Work on projects

2

• Presentations will be on Tuesday, 12/7
• You must email me your presentations by 830AM,
  Tuesday 12/7.
• We will be working on the project in class today
  and on Monday.
• Work with your team to have a fantastic
  presentation (Ms. Brekke will be coming Sotiri,
  Mr. Papaefthimiou, Mr. Jurado on speaker or
  Skype!)
• By the end of todays class
• Read the entry document
• Read your clients profile
• Finish the group contract
• On the back of the contract, write who is
  emailing me your PPT
• Write your groups plan to finish the project
  (DETAILS please!!!)

3

• The graph shows the monthly fee for Cell
  Zone. Use it to answer the following questions
• 1) What is the monthly fee?
• 2) How many minutes are included in the
  monthly fee?
• 3) If a customer goes over the minutes
  included in the fee, how much will they be
  charged per minute (/min)?
• 4) Write a function for this plan.

4
Warm-up (1 of 2)

• Cell Zone charges 0.20 per minute, with only
  a 15.00 monthly fee.
• 1. What is the monthly fee?
• 2. How many minutes are included in the monthly
  fee?
• 3. What is the cost per minute?
• 4. Write a function for this plan in function
  notation.
• 5. Find the monthly for each of the minutes
  listed below

Total Minutes (Minutes) Monthly Fee (US dollars)
100
200
300
400
500
5
Warm-up (2 of 2)

• Use the table to answer the following questions
• 1. What is the monthly fee?
• 2. How many minutes are included in the monthly
  fee?
• 3. If a customer goes over the minutes included
  in the fee, how much will they be charged per
  minute (/min)?
• 4. Write a function for this plan.

Total Minutes (Minutes) Monthly Fee (US dollars)
100 40
200 40
300 40
400 40
500 65
600 90
700 115