Final answer:
The Cartesian plane consists of a horizontal x-axis and a vertical y-axis intersecting at the origin, used to label points in 2D and extended to 3D with a z-axis. It's used in line graphs to represent relationships between variables and in various fields such as art and physics for perspective and vector analysis.
Step-by-step explanation:
These are composed of intersecting horizontal and vertical lines that form a Cartesian plane. The system is based on two axes that are perpendicular to each other: the x-axis (horizontal) and the y-axis (vertical). At their intersection lies the origin, from which distance is measured in positive and negative directions. Working well on a flat surface like paper, this Cartesian system can also be extended into 3D space by adding a z-axis, allowing points to be labeled in three-dimensional space.
Graphs commonly utilize this Cartesian plane, showcasing relationships between two variables: one on the x-axis and the other on the y-axis. These graphs are known as line graphs. The concept of a Cartesian system also applies to linear perspective in art, where orthogonal lines meet at a vanishing point on the horizon line, and in physics, where vectors are broken down into horizontal and vertical components for ease of calculation.