algebra
posted by lee .
Can someone please explain and help me with this problem.
4. The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century.
Year Pounds
Consumed
1908 5.027
1923 8.768
1960 12.29
1981 15.485
What cubic model best fits this data?
y = ¨C0.0000541x3 + 0.00789x2 ¨C 0.452x ¨C 1.888
y = ¨C0.0000541x3 ¨C 0.00789x2 ¨C 0.452x + 1.888
y = 0.00789x3 ¨C 0.0000541x2 + 1.888x + 0.452
y = 0.0000541x3 ¨C 0.00789x2 + 0.452x + 1.888
5. If you were going to use this model to estimate the amount of cheese consumed per person in 1976, would that prediction be considered interpolation or extrapolation?
interpolation
extrapolation
6. What is the domain of the graph for the data set?
1976
5.027 ¡Ü domain ¡Ü 15.485
1908 ¡Ü domain ¡Ü 1981
any year in the twentieth century

Let's see it''s okay for you to ask for help, but noone else!!! Mind your own business if you have nothing nice to say.