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© 2012 Texas Instruments Educaon Technology Page 27
The Graphs and Geometry applicaons are probably the most visually excing of the TI-Nspire applicaons.
This tutorial introduces the Graphs applicaon and then concentrates on its use for graphing and exploring
funcons. The applicaon’s use for creang and exploring geometrical shapes is covered in Tutorial 5.
Start by opening the document that you created in Tutorial 3. Press c then select to create a
new page with the Graphs applicaon. You should see the Graphing View, with the coordinate axes dened by
the default window sengs and an entry line at the boom of the screen.
A Graphing page can be turned into a Plane Geometry page by pressing b2 to open the View menu and 2
to choose the Plane Geometry View. This view has no entry line or axes and is ideal for drawing geometrical
shapes. Tutorial 5 will explore this aspect of the Graphs & Geometry applicaon.
Return to the View menu and noce that several opons are now grey, indicang that they are not available in
this view. Choose b21 to return to the Graphing View.
Alongside f1(x)= enter 0.2x
2
–3
(0^2Xq-3) to see the screen shown here.
Noce the label that appears alongside the funcon’s graph
and the way the entry line has now disappeared.
In Tutorial 2 you dened the funcon g(x):=x+4. Press e
to return the entry line and alongside f2(x)= enter g(x)
(G(X)) and draw the straight-line graph. Noce that the
entry line will again disappear.
Pressing e once again will return the graph entry line, pressing e repeatedly and the highlight moves to
dierent locaons on the screen. Highlight the double arrow in the boom right-hand corner and press ·.
This enables you to see all the funcons entered so far––the funcon history. Press d and you move to the
main work area with a cursor in the form of an arrow at the origin.
The Graphing View