horizontal axis

Level reference line

The horizontal axis is the line running left to right on a graph or coordinate system, typically called the x-axis.

It usually represents the independent variable—time, categories, or input values—against which other data is plotted: Plot income on the horizontal axis and spending on the vertical.

Related

perpendicular · vertical · line · flat line · flat · level · spirit level · plane · baseline · equator · latitude · crosswise · sideways · landscape · panorama · left to right · spreadsheet · graph paper

Categories
Opposites
orientation in coordinate systems

horizontal axisy-axis

Graph's vertical reference

ordinate · z-axis

Family

horizontal, horizontally, horizontality, horizon, axis

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Rated G