Y-axis

The Y-axis is a fundamental component of a coordinate system, serving as the vertical reference line used to position elements on a graph. It runs perpendicular to the X-axis, which is the horizontal reference line. The Y-axis typically measures values such as height, quantity, or other variables that change in vertical direction. In a Cartesian coordinate system, the Y-axis intersects with the X-axis at the origin (0,0), creating a framework for plotting data points. This axis helps in visualizing relationships between variables, making it essential for various fields like mathematics, engineering, and data analysis. Understanding how to read and use the Y-axis is crucial for interpreting graphs and charts accurately.