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.
The average cost to paint a front door ranges from $100 - $300 per door. Do not use paint intended for interior doors on your exterior door. While interior paint is strong, it cannot handle outdoor climate conditions. The best paint to use on exterior doors is 100 percent acrylic latex paint.