Which of the following represents the sum of the series? 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26 the answer is: s11= (11ek=1) 6+(k-1)2

Not sure what you mean by "the answer is: ", which is definitely each successive term differs by 2. if we assign to the first term, then we can writeand so on, with the general -th term given bythe sum of the first 11 terms of this arithmetic sequence isif you're supposed to find the value of the sum, then we havefrom which we get

Aline graph should be used