Respuesta :

cool, this is what I just took


a1=first term
since it starts with -3, a1=3
sub
an=-3r^(n-1)
common ratio is what must be multiplied to get next term
-3 times what is -6
answer is 2
r=2
[tex] a_{n}=-3(2^{n-1}) [/tex]  is equaiton (first option)