Estimating Rate of Change from a Graph

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  • October 25, 2012 at 6:21 am #1200
    Patrick
    Guest

    Hi,

    Can you provide an example of estimating rate of change from a graph for Algebra 1?

    I can do examples of actually calculating it. I can do examples of finding the average rate of change.

    However, I am not seeing what the Common Core is aiming for with “estimating rate of change from a graph”. Any assistance would be appreciated.

    October 28, 2012 at 4:15 pm #1210
    Bill McCallum
    Keymaster

    I think this is just a wording issue. What you call calculating, the standards call estimating, because strictly speaking you can’t calculate the rate of change from a graph, since there is always some uncertainty in reading values off a graph. Of course if the graph visibly goes through grid points then it’s natural to make the assumption that those represent exact values.

    August 31, 2019 at 7:05 pm #6091
    Cathy Kessel
    Participant

    “Estimating rate of change from a graph” refers to F-IF.6. An example is in Functions Progression

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