Exercise 12 Page 204

By observing the change that occurs between consecutive terms, we can describe the pattern of the arithmetic sequence. Here, we see that to get from a term to the next term we add 11. Therefore, the common difference of the sequence is 11.

1 + 11 ⟶ 12 + 11 ⟶ 23 + 11 ⟶ 34 To find the next three terms in the sequence, we will extend this pattern three times. 1+ 11 →12+ 11 →23+ 11 →34+ 11 → 45+ 11 → 56+ 11 → 67