Curve Fitting with Polynomial Models Flashcards
1
Q
How do you see if a Data Group conforms to a Polynomial Function?
A
You find the differences between the y’s.
2
Q
If all of the First Differences are equal, what kind of Function does the data conform to?
A
A linear function.
3
Q
If all of the Second Differences are equal, what kind of Function does the data conform to?
A
A quadratic function.
4
Q
If all of the Third Differences are equal, what kind of Function does the data conform to?
A
A cubic function.
5
Q
If all of the Fourth Differences are equal, what kind of Function does the data conform to?
A
A quadratic function.
6
Q
When can you not look at the Differences of a Data Set?
A
When the differences of the x’s aren’t constant.
7
Q
How can you solve a Data Group with inconstant x’s?
A
You can use a scatter plot and a calculator.
