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.
Brick Exteriors. Brick red exteriors and buildings painted red look best with darker doors and light trim. To play up a contemporary faÃ§ade, try a dark purple front door and complement with a light tan or gray trim color. And, to highlight tradition, paint the door black and the trim white. Neutral Tan Exteriors.