Four-Quadrant Coordinate Plane

Visualize two-dimensional space. Target airspace using Cartesian (x, y) coordinates and discover the structural layout, quadrants, and polar transitions of the plane.

Interactive Sonar

Radar Target Tracking

The Cartesian coordinate plane is constructed by overlapping a horizontal axis (x) and a vertical axis (y) intersecting at origin (0, 0). Move sliders to locate aircraft coordinates.

Target Coordinates

(x, y) = (+3.0, +4.0)
X Coordinate (Horizontal) +3.0
Y Coordinate (Vertical) +4.0
Polar Coordinate Conversion:
Radius distance: r = √(x² + y²) = 5.00 units

Polar angle: θ = arctan2(y, x) = 53.1°
Spatial Properties

Quadrant Anatomy & Signs

The intersection of axes partitions the coordinate plane into four distinct regions, labeled in counter-clockwise sequence starting from the top-right.

Quadrant Layout Matrix


Quadrant II (-, +) Top-Left Sector
Quadrant I (+, +) Top-Right Sector
Quadrant III (-, -) Bottom-Left Sector
Quadrant IV (+, -) Bottom-Right Sector

Target Control Link

Target coordinates are controlled dynamically in the radar simulator above. Adjust active coordinates in the Radar Target Tracking Control Panel.

Focus Area Rules


  • Quadrant I: (+, +) Top-Right
  • Quadrant II: (-, +) Top-Left
  • Quadrant III: (-, -) Bottom-Left
  • Quadrant IV: (+, -) Bottom-Right
Interactive Quiz

Cartesian Grid Quiz

Test your spatial reasoning and coordinate plane knowledge with these conceptual questions.

Question 1 of 5 Score: 0/0

In which quadrant do both coordinates carry negative values (-x, -y)?

Correct Answer!

Explanation goes here.