Source: Deep Learning on Medium
normal axis has x and y-axis, here we replaced with y with x2 as axis. like we can define finite axes as x1, x2, …xn.
y = mx +c is line equation in x-y axis. here x2=mx1+c is line axis. we can write it as ax1 +bx2 + c=0.it is a 2-D.
now we will see 3-D.
in 3-D line represents a plane. ax1+bx2+cx3+d=0 is the plane equation. the red points above the plane represent>0, below black points, represents < 0.
Now we will talk about the limitations of 2-D line interpretation.
suppose if you want the low battery and low screen size, high battery performance and large screen size through this interpretation we can’t interpret.