network only has 2 inputs x1 and x2 if we want to get the output it's simply the same story as we had before we multiply our inputs by those weights we take the sum and pass it through a non-linearity but let's take a look at what's inside of that non-linearity before we apply it so we get is when we take this dot product of x1 times 3 X 2 times minus 2 we mul - 1 that's simply a 2d line so we can plot that if we set that equal to 0 for example that's a 2d line and it looks like this so on the x axis is X 1 on the y axis is X 2 and