The graph shows a nonlinear function. This is because the line is not straight. I hope this helps :) <span />
Check the picture below, let's use those two points on the line to get its slope.

Answer: 3.5 integers can be in decimals too. and any number counts as an integer except for 0
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:
<span>(0,1)
</span><span> f(x)=128(0.5)^0
</span><span> f(x)=128
</span><span>
(1,64)
</span><span> f(x)=128(0.5)^1
</span>f(x) = 64 <--------CORRECT ANSWER<span>
(3,16)
</span><span> f(x)=128(0.5)^3
f(x) = 16 <--------CORRECT ANSWER
</span><span>
(8,0.5)
</span><span> f(x)=128(0.5)^8
f(x) = 1/2
Hope this answers the question. Have a nice day.</span>
THE ANSWER IS .......................... 8.5!!!!
HOPE I HELPED!!!!!!!!