Question

is 12, 14, 16, 18, 20 a sequence arithmetic

Answer 1

Explanation

The question wants us to determine if the given sequence is an arithmetic sequence

We have the given sequence to be

$12,14,16,18,20$

One of the unique characteristics of arithmetic sequence is that there is a common difference

A common difference is a difference between two consecutive terms of an arithmetic progression.

So, we have

the first term to be 12

the second term to be 14

The difference is

$14-12=2$

Then we also test the second and third term

The third term is 16

the second term to be 14

The difference is

$16-14=2$

Similarly, if we test for the fourth and fifth term

$20-18=2$

We can see that 2 is the common difference

Thus

we can conclude that the sequence is an arithmetic sequence because it has a common difference of 2