Find a third-degree-polynomial modelof salinity as a function of time . Use the general formof a polynomial in the box on page 114 of our textbook. Hint:proceed much as you did for the quadratic model, and look ahead tothe next paragraph.
Explain why it’s possible to find morethan one third-degree-polynomial model that fits the dataperfectly.
Use your third-degree-polynomial modelto predict the salinity at .
Make a large graph of yourthird-degree-polynomial model, at least through .
Use your third-degree-polynomial modelto predict the long-term trend of salinity.
time | salinity |
0 | 20.0 ppt |
1 year | 14.0 ppt |
2 years | 10.0 ppt |
