The Coordinate Plane

Front

What is the coordinate plane?

Back

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

Front

What are the four quadrants of the coordinate plane?

Back

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

Front

What are coordinates?

Back

A pair of numbers (x, y) that define the position of a point on the coordinate plane.

Front

How do you identify the coordinates of a point?

Back

By locating the point's position relative to the x-axis (horizontal) and y-axis (vertical) and reading the values.

Front

What is the origin in the coordinate plane?

Back

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

Front

What is the x-axis?

Back

The horizontal line in the coordinate plane where y = 0.

Front

What is the y-axis?

Back

The vertical line in the coordinate plane where x = 0.

Front

How do you determine which quadrant a point is in?

Back

By examining the signs of the x and y coordinates: both positive in Quadrant I, x negative and y positive in Quadrant II, both negative in Quadrant III, and x positive and y negative in Quadrant IV.

Front

What are negative coordinates?

Back

Coordinates where either or both values are less than zero, indicating a position to the left of the y-axis or below the x-axis.

Front

What is an ordered pair?

Back

A pair of numbers written in the form (x, y) that represents a point's location on the coordinate plane.