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!
Damage to your eyes can take a long time to heal and your eyes are really important. Spending another $10 on name brand is very much worth the money. If you want to know the price of contact lenses at Walmart, you can get a box of contact lenses for about $25 on average. One box usually contains 6 pairs of contact lenses and you have to buy 2 boxes â one for your right eye and one for your left eye. So for about $50 or so, you can be set for 6 months.