Texas Instruments TI-84 Plus Guide Book

Chapter 3: Function Graphing 128
1. Select 2:zero from the CALCULATE menu. The current graph is displayed with Left
Bound?
in the bottom-left corner.
2. Press } or † to move the cursor onto the function for which you want to find a zero.
3. Press | or ~ (or enter a value) to select the x-value for the left bound of the
interval, and then press Í. A 4 indicator on the graph screen shows the left
bound.
Right Bound? is displayed in the bottom-left corner. Press | or ~ (or enter
a value) to select the x-value for the right bound, and then press Í. A 3 indicator
on the graph screen shows the right bound.
Guess? is then displayed in the bottom-
left corner.
4. Press | or ~ (or enter a value) to select a point near the zero of the function,
between the bounds, and then press Í.
The cursor is on the solution and the coordinates are displayed, even if
CoordOff format
is selected. To move to the same x-value for other selected functions, press } or †. To
restore the free-moving cursor, press | or ~.

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-