What is the value of the 11th term in the sequence -3, -6, -12, -24, ...? Algebra Exponents and Exponential Functions Geometric Sequences and Exponential Functions 1 Answer Alan P. Oct 28, 2015 The 11th term is #-3072# Explanation: #a_1 = -3# #a_2 = (-3)*2# #a_3 =(-3)*2^2# #a_4 =(-3)*2^2# etc. #a_i = (-3)*2^(i-1)# ... #a_11 = (-3)*2^10 = (-3)*1024 = -3072# Answer link Related questions What is Geometric Sequences ? How are exponential functions related to geometric sequences? How do you use the geometric sequence formula to find the nth term? What is the constant ratio "r" mean in a geometric sequence formula? Is the following an example of a geometric sequence: –1, 1, –1, 1, –1, ... ? What is the constant ratio "r" in the example 2, –8, 32, –128? How do you determine the first 5 terms if #a_1=2# and #r=3#? How do you find #a_4# if #a_1=-7# and #r=-3/4#? How do you graph: #y = 2^x + 2#? How do you graph: #f(x)=4^x#? See all questions in Geometric Sequences and Exponential Functions Impact of this question 6742 views around the world You can reuse this answer Creative Commons License