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!
Green Door Meanings. Green bursts with images of spring, and so green is symbolic of renewal, growth, rejuvenation and transformation. Green is associated with the earth, and can provide grounding energies. Green is also used in holistic healing practices because it promotes physical well-being as well as compassion.
Comments. 1  A couple of years ago I painted my front door a color similar to Nifty Turquoise. 2  The colors for this next year are wonderful. 3  Try to decide on a color for a rusty red/purple/red brick house!  My house is light grey with white trim.