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.
COLORS. 1  Red â The meaning of a red signs is to prohibit an action or alarm danger. 2  Red signs instruct stopping, shutdown, emergency shutoff, or âdo notâ actions. 3  Red signs also identify and locate fire-fighting equipment. 4  Yellow â The purpose of a yellow sign is to warn.