so inside that before we apply the non-linearity we get minus 6 when we apply a sigmoid non-linearity because sigmoid collapses everything between 0 and 1 anything greater than 0 is going to be above 0.5 anything below zero is going to be less than 0.5 so in is because minus 6 is less than zero we're going to have a very low output this point Oh 200 to we can actually generalize this idea for the entire feature space let's call it for any point on this plot I can tell you if it lies on the left side of the line that means that before we apply the non-linearity the Z or the state of that