To determine the correct ordered pairs which will agree with the function, we can substitute values to the function and see whether it agree with each other. We do as follows:

(0,1)

f(x)=128(0.5)^0

f(x)=128

(1,64)

f(x)=128(0.5)^1

f(x) = 64 <——–CORRECT ANSWER

(3,16)

f(x)=128(0.5)^3

f(x) = 16 <——–CORRECT ANSWER

(8,0.5)

f(x)=128(0.5)^8

f(x) = 1/2

Hope this answers the question. Have a nice day.