Answer:

what is the missing term of the arithmetic sequence -1,_,15,23,31,...?

A.6

Step-by-step explanation:

Answer:

B. 7

Step-by-step explanation:

-1, _ , 15, 23, 31,...

As what you've noticed, the common difference in this arithmetic sequence is 8.

15 + 8 = 23

23 + 8 = 31

So, to get the second term...

-1 + 8 = 7

Then it shows that the answer is 7.