What is a descending arithmetic sequence?

1 Answer
Jul 13, 2015

It's a sequence of numbers that go down in a regular, linear fashion.


An example is 10,9,8,7,... that goes down 1 every step or step=#-1#.

But 1000, 950, 900, 850... would also be one, because this goes down 50 every step, or step=#-50#.

These steps are called the 'common difference'.

An arithmetic sequence has a constant difference between two steps. This can be positive, or (in your case) negative.