Question

If each term of a sequence changes by a common difference, d, what would a general rule for this type of sequence be?

Answer 1

A sequence which posses common difference is called an arithmetic sequence. This sequence is given by the formula Xn=a+d(n-1);
where:
a=first term
d=common difference
n=nth term
Thus the general rule is:
Xn=a+d(n+1)