If you graph a linear function, you get a line. If you graph a quadratic function, you get something called a parabola. A parabola tends to look like a smile or a frown, depending on the function. Check out this tutorial and learn about parabolas!
Orange Door Meanings. Orange is a colour associated with Mercury, which is the swiftest of the planets. Indeed the planet as the fleet-footed Roman god is symbolic of for reception, communication, perception, commerce, movement, intelligence and flexibility. With these kind of qualities, it might be a good idea to paint your business door orange.
What is the standard height and width of a front door? In Australia The standard size of a front door is 2040mm X 820mm.   In the US, the most common sizes are 32 x 81.5 or 36 x 81.5 (rounded up to 82). 16 people found this useful.