The arithmetic sequence is
.
The first term
.
Find the common difference by subtracting successive terms.
\The common difference (d) is 2.
Find the nth term, so using the nth term formula:
.
(Substitute
, and d = 2)
Distribute terms using distributive property:
.

Apply commutative property of addition: a + b = b + a.
\
(Subtract:
)
Find the 10th term in the sequence.
\
(Substitute n = 10)
(Multiply:
)
(Apply additive inverse property:
)
Make a table first five terms of the sequence
.
| \
n \ | \
\
an = 2n | \
\
an \ | \
\
(n, an) \ | \
| \
1 \ | \
\
| \
\
| \
\
(1, | \
| \
2 \ | \
\
| \
\
| \
\
(2, | \
| \
3 \ | \
\
| \
\
| \
\
(3, | \
| \
4 \ | \
\
| \
\
| \
\
(4, | \
| 5 | \ \
| \
10 | \
(5, 10) | \
Graph of the first five terms of the sequence
.

Graph of the first five terms of the sequence
.
