1. www.media4math.com
TI-Nspire Mini-Tutorials
Solving Cubic Equations Algebraically and Graphically (CAS)
Summary of Keystrokes
Solving the cubic equation algebraically:
c11b31
(Input this cubic or your own:
Xq-
4rX+1=0,X· .)
Solve the cubic equation graphically:
cI2 (Input the cubic function.)
b51 (Click ¢ until the pointer is on the graph at the x-
axis.)
(Compare your results. Toggle from the Calculator to the Graph window by
pressing /¡ ¢ or