SOLUTION: Write the nth term of the following sequence in terms of the first term of the sequence. 2, -4, 8, -16, . . . I am stumped on this one. I have been working it for hours but c

Question 453307: Write the nth term of the following sequence in terms of the first term of the sequence.
2, -4, 8, -16, . . .
I am stumped on this one. I have been working it for hours but cannot seem to get the right formula to do it. Any help would be much appreciated. Thanks
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Sequence is geometric, with common ratio -2. So,

(note that I put a negative so that the sequence does not become -2, 4, -8, etc.).
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