# Can a sequence have negative numbers?

## Can a sequence have negative numbers?

Arithmetic sequences where each term is obtained from the preceding one by adding a constant, called the common difference and often represented by the symbol d. Note that d can be positive, negative or zero.

What if the arithmetic sequence is negative?

An arithmetic sequence is a list of numbers with a definite pattern. If the common difference between consecutive terms is positive, we say that the sequence is increasing. On the other hand, when the difference is negative we say that the sequence is decreasing.

### What must be true about an arithmetic sequence whose common difference is negative?

What must be true about an arithmetic sequence whose common difference is negative? The terms in the sequence are always decreasing.

Answer Expert Verified Fibonacci sequence is always start in the positive number 1. And there is no way that negative number will be inserted in the Fibonacci sequence because when adding positive to positive the result is always positive, unless you apply a higher math knowledge such as infinite series.

#### Does the Fibonacci sequence work with negative numbers?

Extension to negative integers , one can extend the Fibonacci numbers to negative integers. So we get: −8, 5, −3, 2, −1, 1, 0, 1, 1, 2, 3, 5, 8.

Can an arithmetic sequence have a negative difference?

Yes, the common difference of an arithmetic sequence can be negative. It is simply calculated by taking the difference between the second term and the first term in the arithmetic sequence or the difference between the third term and the second term or any of the two consecutive numbers in the sequence.

## Which is not arithmetic sequence?

The following are not examples of arithmetic sequences: 1.) 2,4,8,16 is not because the difference between first and second term is 2, but the difference between second and third term is 4, and the difference between third and fourth term is 8. No common difference so it is not an arithmetic sequence.

What is an in arithmetic sequence?

An arithmetic sequence (also known as an arithmetic progression) is a sequence of numbers in which the difference between consecutive terms is always the same. For example, in the arithmetic sequence 1, 5, 9, 13, 17, …, the difference is always 4. This is called the common difference.

### What is the common difference of the arithmetic sequence in number one?

The common difference is the value between each successive number in an arithmetic sequence. Therefore, the formula to find the common difference of an arithmetic sequence is: d = a(n) – a(n – 1), where a(n) is the last term in the sequence, and a(n – 1) is the previous term in the sequence.

What is the nth term of a negative sequence?

Answer: This sequence is going down in 3’s so compare is to the negative multiplies of 3 (-3,-6,-9,-12). You will need to add 18 to each of these numbers to give the numbers in the sequence. So the nth term of this sequence is -3n + 18. Therefore since half of -2 is -1 the first term will be -n^2.