Texas Instruments TI-84 Plus Silver Edition

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Graphing a Function on a Limited Domain
Graphing a Function on a Limited DomainGraphing a Function on a Limited Domain
Graphing a Function on a Limited Domain
To enter a function on a limited domain, put parentheses around the function; then press / ; then
enter the limitation on the domain and put parentheses around the domain.
Example: Enter the function
3 2
2 3
( ) 5 9
3 4
f x x x x
= − − +
on the interval [-1, 5].
Put parentheses around the function when entering it into Y=. Then press the division key to
separate the function from the domain.
The interval [-1, 5] is the same as the inequality
1 5.
x
− ≤ ≤
To enter this, press ( (-)1, 2
nd
,
MATH, 6, X, 2
nd
, MATH, LOGIC, and, X, 2
nd
, MATH, 6, 5) .
Press GRAPH to view the graph. Note that it may be necessary to adjust the viewing window to
see an appropriate display of the graph of the function. The window used in the screen shot
below is [-2, 8, -40, 10].