Here's a horizontal -------
Here are some verticals .... arranged horizontally
Chat with our AI personalities
What it means is horizontal line is like the horizon it goes across
horizontal
a line that goes right across
The horizontal axis runs left to right because it is horizontal. The vertical axis runs up and down. In math, 'y' is associated with the horizontal axis and 'x' is associated with the vertical axis.
The word abscissa can either refer the horizontal axis (the x-axis) in a cartesian coordinate system or the actual coordinate plotted on the horizontal axis.