Linear classifier is like a line drawn on a graph. It helps us sort things into groups. Imagine a graph with a lot of dots that are different colors. A linear classifier is like a line drawn on the graph that tells us which dots belong to which group. The line divides the graph into two parts. All of the dots on one side of the line belong to one group, and all of the dots on the other side of the line belong to another group. A linear classifier helps us separate all of the dots into the two groups.