Best graphing calculators for school If a conventional function or scientific calculator doesn't suffice what you need, the graphing calculator is probably the answer. It's the most advanced kind of tool for finance, statistics, calculus and much more. It usually comes with a significantly higher cost. Based on the features you want, you could pay up to $40 or over $100 to purchase a single. As the saying is, you get what you get for your money. If you don't time your purchase with a good deal then a decent graphing calculator will cost you about $100. Texas Instruments TI-84 Plus CE This is a graphing calculator with high-definition display in color Amazon When you need a calculator that will perform flawlessly and produce an excellent image, the TI-84 CE is a fantastic option. It is priced at $150, but you might sometimes be able to find it on Amazon for just $105 or less. The TI-84 Plus CE has a high-res, high-quality, backlit display and preloade...