Select the correct answer.
Consider the geometric sequence.
8, 4, 2, 1, . . .
Given that the sequence is represented by function f, what are the values of f(1) and the common ratio?
f(1) = 8
Common ratio: 0.5
f(1) = 4
Common ratio: 2
f(1) = 4
Common ratio: 0.5
f(1) = 8
Common ratio: 2
