Question

Which of the following points is not on the graph of y=3{1/3}^x

A. (-2,27)
B.{3,1/9}
C.(-1,8)
D.{2,1/3}

Answer 1

substitute for x in each of the options to see which one fits

Answer 2

for example , first optionn
x = -2 and y = 27
y = 27
3(1/3)^-2 = 3 * 1 / (1/3)^2 = 3 * 1 / (1/9) = ?

Answer 3

i tried that but it didn't give any exact anwser