SOLUTION: Determine which of the following can be the first three terms of an Arithmetic sequence. a. 1/2,1/4,1/8 b. -8,-16,-32 c. -42,-37,-32 d. 4,-1,6 I have no idea which one it is.

Algebra ->  Algebra  -> Sequences-and-series -> SOLUTION: Determine which of the following can be the first three terms of an Arithmetic sequence. a. 1/2,1/4,1/8 b. -8,-16,-32 c. -42,-37,-32 d. 4,-1,6 I have no idea which one it is.       Log On

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Question 37824: Determine which of the following can be the first three terms of an Arithmetic sequence.
a. 1/2,1/4,1/8
b. -8,-16,-32
c. -42,-37,-32
d. 4,-1,6
I have no idea which one it is. Could you please help me? Thank you.
Answer by fractalier(2101) About Me  (Show Source):
You can put this solution on YOUR website!
In arithmetic sequences, a common number is added to each term over and over again...
"a" is not one since the number we add changes, "b" is not one either for the same reason, but "c" is one because we are addng 5 each time, and "d" is not because we subtract five then add five...