1 Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore. Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore.
State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inver...
Direct Variation. Words: a line that has a constant âkâ and goes through the origin. Symbols: y = kx, where k is a number (positive or negative) Example: y = 3x. 3 or k is called âconstant of variationâ or âconstant of proportionalityâ Example 1 The height of the water as a pool is being filled is shown in the graph.