The successive differences of a sequence are shown in this image. What is the degree of its associated polynomial expression?

1 answer

Since the differences form a pattern and eventually become constant, this indicates that the original sequence can be modeled by a polynomial function. The degree of the polynomial expression is determined by the number of times the differences change before becoming constant.

In the given image, the differences change twice before becoming constant. Therefore, the degree of the associated polynomial expression is 2.