In a Cartesian grid the x-axis is the horizontal axis and the y-axis is the vertical axis. It is used as a reference line so you can measure from it. What does principal mean in math terms.
Definition of X-Axis The coordinate plane is formed by the intersection of two number line s a horizontal number line and a vertical number line.
Definition of X-Axis The coordinate plane is formed by the intersection of two number line s a horizontal number line and a vertical number line. A graphed cluster of dots each of which represents the values of two variables. Axis - One of the lines that is used to form a graph. Abscissa - The horizontal line or x-axis of a graph.