Which of the following is not a geometric sequence? 2, 8, 32, 128, ... 10, 13, 16, 19, ... 5, 10, 20, 40, ... 3, 6, 12, 24, ... 2 That's correct! You have selected the sequence that is not geometric. From among a set of options, the student correctly identified which sequence was not geometric. 1 Sorry, that's incorrect. The sequence 2, 8, 32, 128, ... is geometric. Each term is equal to the previous term times four, so this is a geometric sequence with a common ratio of 4. The student was not able to identify a non-geometric sequence from among a set of options. 3 Sorry, that's incorrect. The sequence 5, 10, 20, 40, ... is geometric. Each term is equal to the previous term times two, so this is a geometric sequence with a common ratio of 2. The student was not able to identify a non-geometric sequence from among a set of options. 4 Sorry, that's incorrect. The sequence 3, 6, 12, 24, ... is geometric. Each term is equal to the previous term times two, so this is a geometric sequence with a common ratio of 2. The student was not able to identify a non-geometric sequence from among a set of options. solveGeometricProblems