The successive differences of a sequence are shown in the image. What is the standard form of its related polynomial expression?

(1 point)
Responses

An2+Bn+C

An4+Bn3+Cn2+Dn+E

An+B

An3+Bn2+Cn+D

1 answer

To determine the standard form of the polynomial, we need to analyze the successive differences of the sequence given.

  1. If the first differences are constant, the polynomial is linear: \( An + B \).
  2. If the second differences are constant, the polynomial is quadratic: \( An^2 + Bn + C \).
  3. If the third differences are constant, the polynomial is cubic: \( An^3 + Bn^2 + Cn + D \).
  4. If the fourth differences are constant, the polynomial is quartic: \( An^4 + Bn^3 + Cn^2 + Dn + E \).

Since we do not have access to the image or the specific successive differences, please check the differences:

  • If the first set of differences is constant, the answer is \( An + B \).
  • If the second set of differences is constant, the answer is \( An^2 + Bn + C \).
  • If the third set of differences is constant, the answer is \( An^3 + Bn^2 + Cn + D \).
  • If the fourth set of differences is constant, the answer is \( An^4 + Bn^3 + Cn^2 + Dn + E \).

Based on the level of differences that are constant in your data, you can select the corresponding polynomial form.