Going straight across, side to side. Perpendicular to vertical.
Example:

🔑Key Topics: Hortizontal and Vertical Graphs
👀Also Look up: Perpendicular, Vertical
Going straight across, side to side. Perpendicular to vertical.
Example:
🔑Key Topics: Hortizontal and Vertical Graphs
👀Also Look up: Perpendicular, Vertical