Question

20, 10, 0, -10 is an arithmetic sequence

yes or no

Answer 1

Yes, \(20, 10, 0, -10\) is an arithmetic sequence. In an arithmetic sequence, the difference between consecutive terms is constant.

In this case:

- The difference between \(20\) and \(10\) is \(-10\).
- The difference between \(10\) and \(0\) is also \(-10\).
- The difference between \(0\) and \(-10\) is again \(-10\).

Since the difference is consistently \(-10\), it is indeed an arithmetic sequence.