Linked from
The 57 pages that link to Cartesian coordinate system, each with the reason it gives.
Complex planeNarrower topic: The complex plane uses this familiar coordinate framework.
SlopeNarrower topic: Slope compares coordinate changes along these axes.
Graph of a functionNarrower topic: It displays ordered input-output pairs as points in the plane.
Number lineNarrower topic: Each axis extends the number-line idea into a coordinate plane.
Y-interceptNarrower topic: The y-axis and the zero x-coordinate define the intercept’s position.