Chapter 9 linear inequaliTieS 335
-<-+<
-<-<-
>-
>-
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11 11 11
12 610
12
6
6
6
1
x
x
x
00
6
2 5
3
5
3
2 5
3
2
<<
xx or ,
- 7
8
1
4
2
4
1
7
8
4
1
1
4
42
7
2
8 7
2
8
<≤
⋅<⋅≤
<≤
x
x
x
()
,
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+++
≤≤
≤≤
≤
.
.
.
.
..
x
x
x
x≤≤
8
3
2 8
3
,
- -≤ +<
---
-≤ <-
⋅- ≤⋅ <⋅-
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3
40
444
10 2
3
4
3
2
10
1
3
2
2
3
3
2
4
1
x
x
x
- -≤<- -- 15 x 61 [, 56 )
- -< - <
-<⋅ - <
-< -<
+++
1 25
3
1
313
1
25
3
31
32 53
555
2
x
x
x
()() ()
<<<
<<
<<
28
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2
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2
8
2
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x
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x (, )