Imran and Aubrey were asked to find an explicit formula for the sequence 14,5,-4,-13,...14,5,−4,−13,...14, comma, 5, comma, minus, 4, comma, minus, 13, comma, point, point, point, where the first term should be g(1)g(1)g, left parenthesis, 1, right parenthesis. Imran said the formula is g(n)=14-9(n-1)g(n)=14−9(n−1)g, left parenthesis, n, right parenthesis, equals, 14, minus, 9, left parenthesis, n, minus, 1, right parenthesis.
Aubrey said the formula is g(n)=14-9ng(n)=14−9ng, left parenthesis, n, right parenthesis, equals, 14, minus, 9, n.
Which one of them is right?
Choose 1
Choose 1

(Choice A)
A
Only Imran

(Choice B)
B
Only Aubrey

(Choice C)
C
Both Imran and Aubrey

(Choice D)
D
Neither Imran nor Aubrey