The arithmetic sequence is .

Now we can find the common difference d by subtracting two consecutive terms.

So, the common difference .

The arithmetic sequence with first term , common difference .

Apply nth term of the arithmetic sequence formula: .

Make a table first five terms of the sequence.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

\ n \	\   \           0.5n – 1.5 \ \	\     an \	\ (n, an) \
\ 1 \	\ 0.5(1)–1.5 = 0.5–1.5 = – 1 \	\     –1 \	\ (1, – 1) \
\ 2 \	\ 0.5(2)–1.5 = 1–1.5 = –0.5 \	\ –0.5 \	\ (2, – 0.5) \
\ 3 \	\ 0.5(3)–1.5 = 1.5–1.5 = 0 \	\ 0 \	\ (3, 0) \
\ 4 \	\ 0.5(4)–1.5 = 2–1.5 = 0.5 \	\ 0.5 \	\ (4, 0.5) \
\ 5 \	\ 0.5(5)–1.5 = 2.5–1.5 = 1 \	\ 1 \ \ \	\ (5, 1) \

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Graph the first five terms of the sequence.

The nth terms of the sequence .

Graph the first five terms of the sequence.