98,443 views
21 votes
21 votes
Geometric SequencesDetermise if the sequence is geometric. If it is, find the common ratio.3 points-7, -1, 5, 11,...O Not geometricGeometric; common ratio: 6O Geometric; common ratio -7Geometric; common ratio: 11

User Likeitlikeit
by
2.7k points

1 Answer

15 votes
15 votes

The common ratio is found dividing two consecutive terms, as follows:

-1/-7 = 1/7

5/-1 = -5

11/5

Given that these results are all different, then it is not a geometric sequence

User Wojtek Majerski
by
2.6k points