Answer:
1, 3, 6, 7, 9...
1, 4, 8, 7, 11...
Step-by-step explanation:
(1, 3, 6, 7, 9...)
This one is the sequence because it follows a specific pattern, which is 2n-1, or (2 x figure number) - 1. 1x2-1=1. 2x2-1=3. 3x2-1=7. And so on.
(1, 4, 8, 7, 11...)
This one, no matter how you look at it, has no pattern. Its not a proper sequence of numbers.