Graphing on a coordinate plane

A coordinate plane is a two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis). Each point on the plane is defined by an ordered pair of numbers (x, y).

Quadrant I: (x > 0, y > 0), Quadrant II: (x < 0, y > 0), Quadrant III: (x < 0, y < 0), Quadrant IV: (x > 0, y < 0).

Coordinates are identified as an ordered pair (x, y), where 'x' represents the horizontal position and 'y' represents the vertical position on the coordinate plane.

The point (0, 0) is known as the origin, where the x-axis and y-axis intersect.

The x-axis is the horizontal line on the coordinate plane, while the y-axis is the vertical line. They are used to plot points and define the location of points in relation to each other.

To determine the quadrant, look at the signs of the x and y coordinates: Quadrant I (both positive), Quadrant II (x negative, y positive), Quadrant III (both negative), Quadrant IV (x positive, y negative).

In Quadrant I, both coordinates are positive, for example, (3, 4).

In Quadrant II, the x-coordinate is negative and the y-coordinate is positive, for example, (-3, 5).

In Quadrant III, both coordinates are negative, for example, (-2, -3).

In Quadrant IV, the x-coordinate is positive and the y-coordinate is negative, for example, (4, -2).