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!
Although these items can usually be purchased online as well, the Walmart eye exam cost and prescription will usually be substantially lower than those of many other places. However, your Walmart eye exam cost will usually range between the $50 and $90 mark. Contact lens wearers will normally pay a slightly higher price. Price Chart â¢ The standard eye exam fee costs $50 (plus taxes). â¢ A contact exam ranges from $70-$90 (plus taxes). The price depends on the strength of your prescription.