Horizontal

Definition

In geometry, horizontal refers to something that is parallel to the horizon or perpendicular to vertical lines. In terms of graphs, it means having zero slope or being flat along the x-axis.

Related terms

Vertical Line:

A line that runs straight up and down (perpendicular) with respect to the x-axis.

Slope Intercept Form: An equation representing a linear function where y = mx + b, where m represents slope and b represents y-intercept.

Gradient: The rate at which something changes as you move horizontally across its domain; often used interchangeably with slope in calculus.