Find the solutions (roots) of a quadratic equation using the graphing calculator. Consider the following examples: Solve: Since this equation is set equal to zero, the roots will be the locations where the graph crosses the x-axis (if the roots are real numbers). (Remember that the x-axis is really just y = 0.) 1. Set. 2. Use the ZERO command to find the roots -- 2nd TRACE (CALC), #2 zero.
The cost of glasses and how to save. Glasses can cost anywhere between $10 for reading glasses at Walmart to $500+ if you opt for an expensive designer pair. Asking how much glasses cost is a little like asking how much your wife should spend on a new dress. It depends on whether she's shopping at Kohl's or Neimen Marcus, Target or Anthropologie!
Getting the best value for your money when it comes to eyeglasses, sunglasses, eye exams, and contact lenses. 87 posts â¢ Page 1 of 1. As part of my search for finding the best place to purchase cheap eyeglasses, I looked into Walmart. I checked out my local Wal-Mart. They said they have frames starting as cheap as $18 and they go up to $140. They charge $49 for the eye exam.