Texas Instruments TI-83 - 2.3 Library of Functions; Piecewise-defined Functions; Example 1 Analyzing a Piecewise-defined Function

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