Question

Determine whether the sequence is arithmetic or geometric.
Sequence 1: 32, 16, 0, –16, ...
Sequence 2: 32, 16, 8, 4, ...
(A)Sequence 2 is arithmetic and Sequence 1 is geometric.
(B)Both sequences are geometric.
(C)Sequence 1 is arithmetic and Sequence 2 is geometric.
(D)Both sequences are arithmetic.

Answer 1

32, 16, 0, –16, ... it is an arithmetic sequence with the difference (d) = -16
32, 16, 8, 4, ... it is a geo seq with the ratio (r) = 1/2