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.
