Tile Floor Cleaning Machines When Tiling A Wall AND The Floor, How Close To The Floor Should I Get The Wall Tile?

When tiling a wall AND the floor, how close to the floor should I get the wall tile? - tile floor cleaning machines

If the investment from the floor? Or
Should I go place for the brick wall below the tile? Or
If they are on each edge of the image?

I do not know the best way to do this? I am tiles on the wall about 3.5 m, and why a new tile.