Chapter 7: Tables; Getting Started: Roots Of A Function - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

Chapter 7:
Tables

Getting Started: Roots of a Function

Getting Started is a fast-paced introduction. Read the chapter for details.
Evaluate the function Y = X
occur, and at what X values?
1. Press z † † † Í to set
mode.
2. Press o. Press „ 
press ¹ „ to enter the function
2
3. Press y - to display the
screen. Press Ì
10
Í to set @
Press
1
Press Í to select
generated independent values). Press † Í to
select
Depend: Auto
dependent values).
4. Press y 0 to display the table screen.
: The message on the entry line, "Press + for
Note
@
Tbl" is a reminder that you can change
this table view. The entry line is cleared when you
press any key.
5. Press † until you see the sign changes in the
value of . How many sign changes occur, and at
Y1
what X values?
In this case, you can also see the roots of the
function by finding when Y1=0. You can explore
changes in X by pressing
prompt, entering a new value, and searching for
your answer.
3
N 2X at each integer between L10 and 10. How many sign changes
graphing
Func
3
to select . Then
3
Y1=X
TABLE SETUP
Í to set
TblStart=
L
.
Tbl=1
(automatically
Indpnt: Auto
(automatically generated
@
Tbl from
Ã
to display the
3
.
N 2X
.
10
@T
Tbl

Chapter 7: Tables

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