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1. zeros cubicintersectiontouchpad
1. www.media4math.com
TI-Nspire Mini-Tutorials
Finding the Zeros of a Cubic Function Using Function
Intersection
Summary of Keystrokes
Create a graph window:
1
Graph the cubic function:
Xl3+Xq-
(Reset Window as necessary to show all zeros.)
Activate function intersection:
7
(Use ¡ ¢¤` to hover over the graph of the cubic. Press · .
Repeat with the horizontal axis. The zeros should be highlighted as points.)
(Use ¡ ¢¤` to hover over the points that define the zeros. Press
· at each point to see the coordinates.)
