Modeling Social Security beneficiaries
The numbers of millions of Social Security beneficiaries for selected years and projected into the future are given in the table.
(a) Find the cubic function that models these data, with x equal to the number of years past 1950.
(b) Find the point of inflection of the graph of this function for x > 0.
(c) Graph this function and discuss what the point of inflection indicates.
![1589_Modeling Social Security.png](https://secure.tutorsglobe.com/CMSImages/1589_Modeling Social Security.png)