The Basics of Cartesian Coordinates
Cartesian coordinates provide a way to represent geometric figures through numerical values. By plotting points on a plane using a pair of numerical coordinates, determined by the perpendicular axes, we open ourselves to a universe of mathematical exploration.
Understanding the Axes
The Cartesian coordinate system divides the plane with two perpendicular axes: the x-axis (horizontal) and the y-axis (vertical). These axes intersect at the origin, denoted as (0, 0).
Plotting Points
Coordinates are expressed as pairs, such as (x, y). For example, point A at (3, 4) lies 3 units along the x-axis and 4 units up the y-axis. Try plotting some points yourself: