Question

Write a rule for the sequence.

2, 6, 10, 14, . . .
Start with 2 and subtract 4 repeatedly.
• Start with 4 and add 2 repeatedly.
• Start with 2 and add 4 repeatedly.
• Start with 2 and add 1, add 2, add 3, and so on.

Answer 1

looks like we are adding 4 each time, and what did we start with ??