Title: Texas Instruments TI-80 Graphing Calculator
Type:

Price: $19

The TI-80 was released with Algebra and Precalculus students in mind. Like the TI-81, it has no link port and is not intended for serious programming. Features: * Graphical analysis: function values, roots, intersections, maximums, minimums, derivatives, and integrals * 8-line by 16-character display * Defines, saves, and graphs up to four functions and six parametric equations * Slide cover included (If anyone knows how to do the code correctly to get breaks and paragraphs please email me; I tried HTML but it apparently doesn't take HTML)

Buy Texas Instruments TI-80 Graphing Calculator