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w
The graph of Y
is between the graphs of Y
and Y
for -1 < x < 1.
2
1
3
EXAMPLE 9 Solving an Inequality Involving Absolute Value
Solve the inequality | x | < 4
SOLUTION
Graph Y
= | x | and Y
= 4. To graph Y
= | x |, enter the Y = menu. With the cursor in
1
2
1
Y
, press MATH.
1
MATH
You should see the following on your screen:
Press the right arrow to highlight NUM:
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