Coordinate Plane

The coordinate plane is a two-dimensional surface formed by the intersection of a horizontal axis (x-axis) and a vertical axis (y-axis), used to locate points using ordered pairs (x, y).

Coordinates are a pair of numbers (x, y) that define the position of a point on the coordinate plane, where 'x' represents the horizontal position and 'y' represents the vertical position.

The origin is the point where the x-axis and y-axis intersect, represented by the coordinates (0, 0).

There are four quadrants in the coordinate plane, each representing a different combination of positive and negative values for x and y.

In Quadrant I, both x and y coordinates are positive (e.g., (3, 4)).

In Quadrant II, the x coordinate is negative and the y coordinate is positive (e.g., (-3, 4)).

In Quadrant III, both x and y coordinates are negative (e.g., (-3, -4)).

In Quadrant IV, the x coordinate is positive and the y coordinate is negative (e.g., (3, -4)).

The x-axis is the horizontal line on the coordinate plane, while the y-axis is the vertical line; together they help define the position of points.

A point is on an axis if either its x-coordinate or y-coordinate is zero (e.g., (0, 2) is on the y-axis).