The first four terms of a sequence are given. Can these terms be the terms of an arithmetic sequence? 38, -22, -6, 10,... Yes, the sequence is arithme

The first four terms of a sequence are given. Can these terms be the terms of an arithmetic sequence?
$38,-22,-6,10,...$
Yes, the sequence is arithmetic.
No, the sequence is not arithmetic.
If the sequence is arithmetic, find the common difference d. (If the sequence is not arithmetic, enter DNE.)
$d=?$
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timbalemX
Here for each consecutive term of the sequence, a constant is added to get the next term.
Therefore given is an arithmetic sequence.
d = second term - first term
$=-22-\left(-38\right)$
$=-22+38$
$=16$