Question

Write the explicit formula that represents the geometric sequence -2, 8, -32, 128

Answer 1

first term is ???

Answer 2

-2

Answer 3

common ratio is ???

Answer 4

mutiplying by4

Answer 5

close

Answer 6

This question has literally been posted up 5-6 times now,wow. I am appalled.

Answer 7

this same exact one?

Answer 8

Yes,

Answer 9

Really????! popular ? huh?

Answer 10

"mutiplying by4" is close, but not fully correct

Answer 11

Sorry, carry on. Haha.

Answer 12

close but no cigar :)

Answer 13

The integers always mess with my mind.

Answer 14

notice how you have the signs alternating (negative, positive, negative, etc)

Answer 15

8x16 =128

Answer 16

-2 x -16=-32

Answer 17

you were close with the 4, it's just -4