PLEASE HELP ASAP THANK YOU ITS DUE SOON PLSS DIRECTIONS: determine if the sequence is geometric. if it is, find the common ratio and the three terms in the sequence after the last one given.

1) -1, -2, -4, -8 ...

2) 2, 4, 8, 16 ...

1)  -16, -36, -64

2) 36, 64, 128

Step-by-step explanation:

1)  -16, -36, -64

2) 36, 64, 128

For the first one, -2^0=1,   -2^1 = -2,  -2^2 = -4 and so on.

For the second one, 2^1 = 2, 2^2 = 4, 2^3 = 8 and so on.

So the only thing that is change is the power or (^x).  

x=6 and x=3

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