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.
Red Front Door on Brick Home. Red is a frequent choice for homes with a traditional look, fitting with brick, molding and columns painted white. The old-fashioned, welcoming color for a front door is red, says Bruce Holliday of Landscape Plans Plus.