Working With Images; Using Piecewise Function Graphing - Texas Instruments TI-84 Plus CE Getting Started

Drop points on the screen.
Points can be saved to
lists.

Working With Images

The TI-84 Plus CE uses both pictures and background images. They are both stored in
Flash archive, but they are used in different ways.
Using Pictures and Backgrounds
• Image Vars (Image1 - Image9, and Image0) are variables stored in archive
memory. An Image Var is used as a Background Image in the graph area. Several
images are pre-loaded on the TI-84 Plus CE. You can also convert images to
TI-84 Plus CE Image Vars in the TI Connect™ CE software and load them to the
calculator. You cannot create images on the calculator.
: TI Connect™ CE software is available as a free download from
Note
education.ti.com/go/download.
• Pic Vars (Pic1 - Pic 9, and Pic0) are also variables stored in archive memory. Pic
Vars can be created by drawing in the graphing area, and the changes saved and
recalled to the graphing area. Saving a Pic Var will not include the Background
Image behind your graphing area.
• Both Image Vars and Pic Vars are stored and run in Flash archive, not in RAM. They
are both accessible in the VARS menu.
• Image Vars and Pic Vars can only be shared with another TI-84 Plus CE or TI-84 C
graphing calculator.
• TI-84 Plus Pic Vars cannot be shared between the TI-84 Plus and the TI-84 Plus CE
graphing calculators.
• If you perform a RAM reset on the TI-84 Plus CE, the Image Vars and Pic Vars
remain in Archive memory for use.

Using Piecewise Function Graphing

How to enter a piecewise function
1. Press ».
2. Press } or † to scroll to B:piecewise( .
3. Press Í.
4. Press | or ~ to select the number of
pieces (1-5) for the function.
5. Press † Í to select OK .
36 Working with Graphs
Calculate the regression
equation, draw the curve, and
store the function.