Question

1. Which of the following is an arithmetic sequence?

a. 2, 5, 9, 14, 20
b. 1, 3, 6, 10, 15
c. -5, -2, 1, 4, 7
d. -3, 0, 4, 9, 15

2. Which of the following is a geometric sequence?
a. 1, 2, 3, 4, 5
b. 7, 12, 17, 22, 27
c. 1, 3, 9, 27, 81
d. -4, 0, 4, 8, 12
e. -6, -4, -2, 0, 2

Answer 1

i say C. -5, -2, 1, 4, 7 is your answer for question 1.

and for question 2 i think is E. -6, -4, -2, 0, 2.