Certain vertical lines, 5 letters
Main vertical lines on graphs, 5 letters
Some vertical lines, 5 letters
They go up and down, 5 letters
Vertical baselines on graphs, 5 letters
Vertical lines in math, 5 letters
Algebraic reference line, 5 letters
How height may be measured, 5 letters
It goes up and down, 5 letters
Plotter's line, perhaps, 5 letters
Side of a Cartesian quadrant, 5 letters
Vertical graph component, 5 letters
Vertical graph line, 5 letters
Vertical line on a graph, 5 letters