Portal X DA IXL - Write a formula for a geon x Mi Inbox - lo.kasia27@myhapa.or x Syllabus and Reta A 2% ixl.com/math/algebra-2/write-a-formula-for-a-geometric-sequence My IXL Learning Assessment Analytics a 2 MM.7 Write a formula for a geometric sequence 05V You have prizes Video )) Write an equation to describe the sequence below, and then find the 7th term. Use n to represent the position of a term in the sequence, where n = 1 for the first term. 1, -2, 4, ... ()) Write your answer using decimals and integers. ()) an = )n - 1 a7 = Submit Work it out Not feeling ready yet? These can help: Find terms of a geometric sequence (100) Lesson: Geometric sequences O 920 acer