Question

–81, 108, –144, 192, ... Which formula can be used to describe the sequence? f(x) = –81 f(x) = –81 f(x) = –81 f(x) = –81

Answer 1

Answer:

Step-by-step explanation:

The given sequence is = -81 , 108 , -144 , 192,......

The sign of "-" is alternate in that sequence;

81 = 9*9;

108 = 9*12;

144 = 12*12;

192 = 12*16;

256 = 16*16 ; is the next number

But there is Minus sign on each alternate term so the 5th term is -256