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using the arrows to put the cursor to the left of
until the line style changes to 3 dots as shown:
Now set the viewing window as shown:
Press GRAPH and you should obtain the result shown in Figure 29(a) on
page 133.
2.5
Operations on Functions; Composite Functions
EXAMPLE 2 Evaluating a Composite Function
Suppose that f x
(a)
Solution
Let Y
To compute
home screen. Press the VARS button
=
2
( )
2
x
(
)( )
f o
g
1
=
=
−
2
f x
( )
2
x
3
and
1
(
)( )
f o
g
1
on the TI-83, we first need to insert Y
=
Y
and pressing ENTER
1
−
=
3
and
g x
( )
4
x
. Find
=
=
Y
g x
( )
4
x
as shown.
2
w
on the
1
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