(4i)^3 = (4)^3 x (i)^3 = 64 x -i = -64i
It's less than because 5 is greater than -2x - 1
X=0 y=-2
y=0 x=4
The shortest distance has to be the perp bisector from origin to the midpoint of the line.
midpoint =(2,-1) and distance from the (0,0) origin is sqrt(5) hence, sqrt(5).
I would think you would use 1/3 of a cup but I am not sure.Hope it helps!