Answer:
-11, -17
Explanation:
Since we are told it is an arithmetic sequence, we find the common difference. To find the common difference, subtract a term from the next term.
1 - 7 = -6
The common difference is -6.
1st term: 7 (We knew this.)
2nd term: 7 + (-6) = 1 (We knew this.)
3rd term: 1 + (-6) = -5 (We knew this.)
4th term: -5 + (-6) = -11
5th term: -11 + (-6) = -17
Answer: -11, -17