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表达式19: "y" equals "x" plus 27 left brace, "x" less than or equal to negative 6 , right brace
y
=
x
+
2
7
x
≤
−
6
19
表达式20: "y" equals "x" plus 27.5 left brace, "x" less than or equal to negative 6.5 , right brace
y
=
x
+
2
7
.
5
x
≤
−
6
.
5
20
表达式21: "y" equals negative "x" plus 27 left brace, "x" greater than or equal to 5.5 , right brace
y
=
−
x
+
2
7
x
≥
5
.
5
21
表达式22: "y" equals negative "x" plus 27.5 left brace, "x" greater than or equal to 6 , right brace
y
=
−
x
+
2
7
.
5
x
≥
6
22
表达式23: "y" equals negative "x" plus 28 left brace, "x" greater than or equal to 7 , right brace
y
=
−
x
+
2
8
x
≥
7
23
表达式24: "y" equals negative "x" plus 28.5 left brace, "x" greater than or equal to 7.5 , right brace
y
=
−
x
+
2
8
.
5
x
≥
7
.
5
24
表达式25: "y" equals "x" plus 28 left brace, "x" less than or equal to negative 7 , right brace
y
=
x
+
2
8
x
≤
−
7
25
表达式26: "y" equals "x" plus 29 left brace, "x" less than or equal to negative 9 , right brace
y
=
x
+
2
9
x
≤
−
9
26
表达式27: "y" equals "x" plus 30 left brace, "x" less than or equal to negative 11 , right brace
y
=
x
+
3
0
x
≤
−
1
1
27
表达式28: "y" equals negative "x" plus 29 left brace, "x" greater than or equal to 9 , right brace
y
=
−
x
+
2
9
x
≥
9
28
表达式29: "y" equals negative "x" plus 30 left brace, "x" greater than or equal to 11 , right brace
y
=
−
x
+
3
0
x
≥
1
1
29
表达式30: "y" equals "x" plus 31 left brace, "x" less than or equal to negative 13 , right brace
y
=
x
+
3
1
x
≤
−
1
3
30
表达式31: "y" equals "x" plus 30.5 left brace, "x" less than or equal to negative 13 , right brace
y
=
x
+
3
0
.
5
x
≤
−
1
3
31
表达式32: "y" equals negative "x" plus 30.5 left brace, "x" greater than or equal to 12 , right brace
y
=
−
x
+
3
0
.
5
x
≥
1
2
32
表达式33: "y" equals negative "x" plus 29.5 left brace, "x" greater than or equal to 9.5 , right brace
y
=
−
x
+
2
9
.
5
x
≥
9
.
5
33
表达式34: "y" equals negative "x" plus 29.7 left brace, "x" greater than or equal to 10 , right brace
y
=
−
x
+
2
9
.
7
x
≥
1
0
34
表达式35: "y" equals "x" plus 30.3 left brace, "x" less than or equal to negative 11.5 , right brace
y
=
x
+
3
0
.
3
x
≤
−
1
1
.
5
35
表达式36: "y" equals "x" plus 30.6 left brace, "x" less than or equal to negative 11.9 , right brace
y
=
x
+
3
0
.
6
x
≤
−
1
1
.
9
36
表达式37: "y" equals "x" plus 28.7 left brace, "x" less than or equal to negative 8.5 , right brace
y
=
x
+
2
8
.
7
x
≤
−
8
.
5
37
38
技术支持
技术支持
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
功能
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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