Use this info to determine whether the conjecture is true or false. If the conjecture is false, give a counterexample (words or pictures). Given:
Conjecture:

add an image

step-by-step explanation:

(c, 0) i might be wrong so don't put full faith on my answer

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2