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 − 9 n g(n)=14−9ng, left parenthesis, n, right parenthesis, equals, 14, minus, 9, n. Which one of them is right?