Education Technology

Solution 33591: Finding the Domain of a Graph Function Using the Domain Command on the TI-Nspire™ CAS Products.

How do I find the domain of a graph function using the domain command on TI-Nspire CAS Products?

Example: Find the domain of x^(2)-2x+3

1) Press [home] [1] to create a new document.
2) Press the [2] key to insert the "Graphs" application. 
3) Input x^(2)-2x+3 and press [enter]

4) Insert a calculator page  by pressing [ctrl] [+ page] and select 1
5) Press the [catalog] key located above the division key
6) Locate the domain command and press [enter]
7) Input F1(x),x) and press [enter]

Example: Find the domain of x-5/3x-21

1) Press [home] [1] to create a new document.
2) Press the [1] key to insert the "Calculator" application.
3) Type in the command "domain" using the keypad
4) Press [(] twice and and input x-5)/(3x-21),x) 
5) Press [enter]

Please see the TI-Nspire CAS products guidebooks for additional information.