Question

Which sequence is generated by the rule 3n - 1, where n represents the position of a term in the sequence? Select one: 1) 3, 6, 9, 12, 15... 2) 4,7, 10, 13, 16 ... 3) 4,5,6,7,8,9... 4) 2,5, 8, 11, 14 ..

Answer 1

$\begin{gathered} 3n-1 \\ \text{where } \\ n=\text{ number of term} \\ \text{first term=3(1)-1=3-1=2} \\ 2nd\text{ term=3(2)-1=6-1=5} \\ 3rd\text{ term=3(3)-1=9-1=8} \\ 4th\text{ term=3(4)-1=12-1=11} \\ 5th\text{ term =3(5)-1=15-1=14} \end{gathered}$

The answer is 4 .