Question

x - axis: _______________ number line in the coordinate system.
y - axis: _______________ number line in the coordinate system.
origin: point that is located at (_,_)

Explanation:

In a two - dimensional coordinate system, the x - axis is the horizontal number line, the y - axis is the vertical number line, and the origin is the point with coordinates (0, 0).

Answer:

x - axis: horizontal
y - axis: vertical
Origin: (0, 0)