Question

An arithmetic sequence has these properties:

a1 = 2
an = an – 1 + 5

What are the first four terms of the sequence?

a.
2, 5, 7, 12

b.
2, 7, 9, 14

c.
2, 5, 10, 15

d.
2, 7, 12, 17

Answer 1

D.

Explanation:

you get this because the an-1+5 means you are adding 5 starting from 2.

2,7,12,17