Write an equivalent series with the index of summation beginning at n = 1. ∞ (−1)n + 1(n + 1)xn n = 0

Looks like the starting series is

Note the degree of the first few terms in the series, for , are , and so on.

So if the series were to start at , we would need to preserve that pattern, and we do that by replacing with :

Simplifying a bit, we end up with

go and ask your mom to you

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: