An arithmetic sequence is given by -1, 3, 7, 11, 15. What is the common difference?
An arithmetic sequence is given by -1, 3, 7, 11, 15. What is the common difference?
Explanation
The common difference (d) is the difference between consecutive terms:
d = 3 - (-1) = 4
d = 7 - 3 = 4
d = 11 - 7 = 4
The common difference is:
4