Modeling Elderly men in the work force
The table gives the percent of men 65 years or older in the work force for selected years from 1920 and projected to 2030.
(a) With x = 0 representing 1900, find the cubic function that models these data.
(b) Use the model to determine when the rate of change of the percent of elderly men in the work force reached its minimum.
(c) On the graph of this model, to what does the result in part (b) correspond?