Question

Match the sequences with the type of sequence (arithmetic or geometric).

Question 1 options:

9, 4, –1, –7, ...


4, 10, 16, 22, ...


2, –6, 18, –54, ...


4, 4, 4, 4, ...

1.
geometric sequence

2.
arithmetic sequence

3.
neither

4.
both

Answer 1

9, 4, -1, -7
Arithmetic because it has a common difference of 5.

4, 10, 16, 22
Arithmetic because it has a common difference of 6.

2, -6, 18, -54
Geometric because it has a common ratio of -3.

4, 4, 4, 4
Both because it has a common difference of 0 and a common ratio of 1.

Hope this helps :)