Question

The first term of an arithmetic sequence is -5, and the tenth term is 13. What is the common difference?

A) 2

B) 1.8

C) 8/9

Answer 1

A)2

Explanation:

-5+2= -3

-3+2= -1

-1+2=1

1+2=3

3+2=5

5+2=7

7+2=9

9+2=11

11+2=13

so the sequence would go: -5,-3,-1,1,3,5,7,9,11,13