Use this interactive file to understand how graphs can be used to compare charges of different phone networks. Learn the effect that a fixed charge and a per-minute charge have on the overall cost. Use in conjunction with the corresponding student activity. Drag the sliders to change the fixed charge and the cost-per-minute of a phonecall for Network A and Network B. Drag the red dot to find the total cost of a phone bill as the number of minutes increases.
Strand: 4. Algebra and Functions
Strand unit: 7. Functions
To register for a Scoilnet Account you will need to have a Teaching Council number and a roll number for your school in Ireland.
If you already have a Scoilnet Account then you can sign in here.
A Scoilnet account will allow you to upload your resources or weblinks to Scoilnet as well as enabling you to share and add resources to a favourites listing. Users who have a Scoilnet Account will also be able to fully access Scoilnet Maps and Census@School from home.
You need to login before you can add this resource to a Learning Path
Login