Finding Equation for a Function given table of value

I am given a table of values

x | y

------

-3|91

-2| 21

-1|3

0 |1

1 |3

2 |21

3 |91

I have found the value of 4th Difference: 24, but I don't know how to to determine an equation for Quartic p01yn0mial function represented by the table of values above..

Original question: Determine equati0n f0r Quartic p0lyn0mial functi0n represented by table of value.

Any solution help would be great! Thanks in advance!

Re: Finding Equation for a Function given table of value

Hey iNoThing.

Whats the formula your teacher gave you regarding fitting a polynomial with difference measures?

Re: Finding Equation for a Function given table of value

Quote:

Originally Posted by

**chiro** Hey iNoThing.

Whats the formula your teacher gave you regarding fitting a polynomial with difference measures?

My instructor did not provide any specific formula with this question... :\

Re: Finding Equation for a Function given table of value

The values indicate that you are going to have something of the form y(x) = (x-a)^4 + 1 for some value a. I make this conclusion on the symmetry of the values on each side of the y-axis.

If the curve is exact try fitting one of the other values to the curve.

If it is not exact try fitting a mean value instead.

Re: Finding Equation for a Function given table of value

Re: Finding Equation for a Function given table of value

Quote:

Originally Posted by

**iNoThing** Original question: Determine equati0n f0r Quartic p0lyn0mial functi0n represented by table of value.

P13@s3 d0n't use l33t.

-Dan