Question

HELP!!!


27. Tell whether the sequence is arithmetic. If it is, what is the common difference?

-15, -9, -3, 3, . . .

A. yes; 3

B. yes; 5

C. yes; 6

D. no

Answer 1

I hope this helps you





-15+6= -9



-9+6= -3



-3+6=3


add 6

Answer 2

The sequence is arithmetic, and the common difference is 6. You can use the formula also,

$a_n=a_0+d(n-1)$