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Match each table of data below with the most appropriate graph and briefly explain why it matches the data. 

Time will always be shown on the .

  1. Boiling water cooling down

    Determine if the are increasing or decreasing.

    Since the numbers for the are decreasing, the only graph which fits is Graph .

  2. Cost of a phone call

    Are the increasing at a constant rate?

    This could be Graph or Graph , but the table would not contain the point , so it must be Graph .

  3. Growth of a baby in the womb

    Identify the pattern of how the length increases.

    Graph fits best.

Graph 1

Graph 2

Graph 3

Graph 4

Graph 5