Parabolas can be the only conic sections that are considered functions because they pass the vertical line test. We have worked with parabolas before in quadratic equations, but parabolas formed by conic sections are a little different.
Toilet drainage rough-in steps. 1  Cut a hole in the subfloor just large enough for the bottom part of the toilet flange to sit. 2  If your installing the drainage underground, excavate the trench and have a supply of clean backfill ready (sand or gravel) to grade and cover the pipe.
toilet vent- horizontal vs vertical? In order to put a pocket door I cut the toilet vent that was on an inside wall, I though I could re-route to the outside wall. After removing the floor, I have no ida how I can do that. I was thinking putting a T and running the vent to the wall, them place an elbow and go up the wall.