Final answer:
Kohler's Line is not a known mathematical concept, but the question is about a coordinate system where Kosma's house is the origin and the school is at +300 meters to the left.
Step-by-step explanation:
The concept of Kohler's Line is not a recognized term in mathematics or physics. Instead, the provided information indicates a basic understanding of coordinate systems. In the scenario given, Kosma's house serves as the origin of a one-dimensional coordinate system, where the school's position is +300 meters. Here, positions to the left are considered positive while positions to the right are negative. This is a simple inversion of the conventional coordinate system where typically right is positive and left is negative. Using this coordinate system, if we want to find the position of the school with respect to Kosma's house, it would be +300 meters from the origin, suggesting it is located to the left of Kosma's house.