13 Questions Geometric sequences Identify terms and common differences in geometric sequences. Based on HS common core standard F-BF.A.2 and TEKS 12D. The 1st term of a geometric sequence is 24 and r = 1/2. What is the 3rd term? 3 6 12 25 What is the common ratio in the geometric sequence 2, −6, 18, −54, …..? 8 3 -3 -8 The 1st term of a geometric sequence is −160 and r = 0.25. What is the 4th term? −40 -10 −2.5 −0.625 … and 10 more awesome questions! Check them out by clicking “Play”.