this calculator FACTORS, SOLVES for X,Y,Q(whatever u want). it does anything calculus. if you want to get automatic As on ALL TESTS, this is the way to go. it will solve any problem..no matter what. it even got me a really high SAT math score. this is different than the ti-84/83 that everyone has.
okay so i have a Ti-89 texas instruments graphing calculator. its fucking sick..especially fi your in high school. its retail is 180 but im willing to let it go for pretty damn cheap. its got a couple cosmetic scratches but nothing bad. works perfectly fine and i basically just need some money and dont try in math class anymore because im a senior.