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2.3 Library of Functions; Piecewise-defined Functions
EXAMPLE 1 Analyzing a Piecewise-defined Function
For the following function f,
(c) Graph f using a graphing utility.
SOLUTION
Press Y = . After
We now need to insert a > symbol. To get the inequalities, you must
access the TEST menu. This is a 2
keyboard.
The TEST menu is
obtained by pressing 2
MATH
After pressing 2
−
+
x
=
f
(
x
)
2
2
x
=
Y
Type the following:
1
−
+
(
x
1
)(
x
nd
nd
nd
TEST, you should see the following on your screen:
−
≤
<
1
if
1
x
1
=
if
x
1
>
if
x
1
function above MATH on the
w
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