algebra

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I NEED HELP!!
The table shows the annual consumption of cheese people in the United States foor selected years in the nineteenth century. What cubic model best fits this data?

Year Pounds Consumption
1915 4.156
1922 4.857
1946 7.16
1991 29.989

  • algebra -

    take a look at using Newton's Divided Differences at

    http://www.math.ucla.edu/~ronmiech/YAN/ndivdiff.html

    I'd probably offset the year values by 1915 to make the values smaller.

  • algebra -

    I still do not understand

  • algebra -

    Im doing this problem also and a I cant figure it out

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