Explanation:
a)
According to the values of the first three terms in the table we can state that:
- This is an arithmetic sequence with the first term of 3 and the common difference of 4.
We can show this as recursive formula:
b)
The next terms are:
- a₄ = 11 + 4 = 15
- a₅ = 15 + 4 = 19
- a₆ = 19 + 4 = 23