表达式51: left parenthesis, "x" plus 6 , right parenthesis squared plus 2 left parenthesis, "y" minus 2 , right parenthesis squared equals 25 left brace, "y" less than negative 1 third left parenthesis, "x" plus 7 , right parenthesis squared plus 7.1 0 7 , right brace left brace, "y" less than 2 , right bracex+62+2y−22=25y<−13x+72+7.107y<2
51
表达式52: "y" equals negative StartFraction, 1 Over 4.5 , EndFraction left parenthesis, "x" minus 3 , right parenthesis squared plus 6 left brace, 2 greater than "x" greater than negative 2.3 8 4 , right bracey=−14.5x−32+62>x>−2.384
52
表达式53: "y" equals negative 2 fifths left parenthesis, "x" plus 1 , right parenthesis squared plus 9 left brace, "y" greater than negative StartFraction, 1 Over 4.5 , EndFraction left parenthesis, "x" minus 3 , right parenthesis squared plus 6 , right brace left brace, "x" greater than negative 1 , right bracey=−25x+12+9y>−14.5x−32+6x>−1
53
表达式54: left parenthesis, "x" minus 2 , right parenthesis squared plus left parenthesis, "y" minus 4 , right parenthesis squared equals 16 left brace, "y" less than negative StartFraction, 1 Over 4.5 , EndFraction left parenthesis, "x" minus 3 , right parenthesis squared plus 6 , right bracex−22+y−42=16y<−14.5x−32+6
54
表达式55: left parenthesis, "x" minus 2 , right parenthesis squared plus left parenthesis, "y" minus 4 , right parenthesis squared equals 16 left brace, "y" less than negative 1 eighth left parenthesis, "x" minus 4 , right parenthesis squared plus 8 , right brace left brace, "y" greater than 4 , right bracex−22+y−42=16y<−18x−42+8y>4
55
表达式56: left parenthesis, "x" plus 8 , right parenthesis squared plus 2 left parenthesis, "y" minus 8 , right parenthesis squared equals 2 left brace, left parenthesis, "x" plus 7 , right parenthesis squared plus 3 halves left parenthesis, "y" minus 7 , right parenthesis squared greater than 2 , right bracex+82+2y−82=2x+72+32y−72>2
56
表达式57: left parenthesis, "x" plus 7 , right parenthesis squared plus 3 halves left parenthesis, "y" minus 7 , right parenthesis squared equals 2 left brace, left parenthesis, "x" plus 6 , right parenthesis squared plus 2 left parenthesis, "y" minus 6 , right parenthesis squared greater than 1.5 , right bracex+72+32y−72=2x+62+2y−62>1.5
57
表达式58: left parenthesis, "x" plus 6 , right parenthesis squared plus 2 left parenthesis, "y" minus 6 , right parenthesis squared equals 1.5 left brace, "y" greater than negative StartAbsoluteValue, "x" plus 5 , EndAbsoluteValue plus 5.5 , right bracex+62+2y−62=1.5y>−x+5+5.5
58
表达式59: "y" equals negative 1 fifth left parenthesis, "x" plus 1 , right parenthesis squared plus 9 left brace, left parenthesis, "x" plus 6 , right parenthesis squared plus 2 left parenthesis, "y" minus 6 , right parenthesis squared greater than 1.5 , right brace left brace, negative 5 less than "x" less than negative 1 , right bracey=−15x+12+9x+62+2y−62>1.5−5<x<−1
59
Pants
对学生隐藏该文件夹。
60
表达式61: left parenthesis, "x" plus 4 , right parenthesis squared plus left parenthesis, "y" plus 6 , right parenthesis squared equals 100 left brace, "y" less than StartFraction, 1 Over 64 , EndFraction left parenthesis, "x" plus 4 , right parenthesis squared minus 8 , right brace left brace, "x" greater than negative 4 , right bracex+42+y+62=100y<164x+42−8x>−4
61
表达式62: left parenthesis, "x" plus 4 , right parenthesis squared plus left parenthesis, "y" plus 6 , right parenthesis squared equals 100 left brace, "y" less than StartFraction, 1 Over 64 , EndFraction left parenthesis, "x" plus 4 , right parenthesis squared minus 8 , right brace left brace, "x" less than negative 12 , right bracex+42+y+62=100y<164x+42−8x<−12
62
表达式63: "x" equals negative 12.2 left brace, negative 28 less than "y" less than negative 11.9 , right bracex=−12.2−28<y<−11.9
63
表达式64: "x" equals negative 4 left brace, negative 28 less than "y" less than negative 16 , right bracex=−4−28<y<−16
64
表达式65: "x" equals 4 left brace, negative 28 less than "y" less than negative 12 , right bracex=4−28<y<−12
65
表达式66: "y" equals 1 eighth left parenthesis, "x" plus 8 , right parenthesis squared minus 30 left brace, negative 12.2 less than "x" less than negative 4 , right bracey=18x+82−30−12.2<x<−4
66
表达式67: "x" equals StartFraction, 1 Over 50 , EndFraction left parenthesis, "y" plus 32 , right parenthesis squared minus 12.5 left brace, negative 32 less than "y" less than negative 28 , right bracex=150y+322−12.5−32<y<−28
67
表达式68: "y" equals StartFraction, 1 Over 40 , EndFraction left parenthesis, "x" plus 6 , right parenthesis squared minus 33 left brace, "y" greater than negative StartAbsoluteValue, "x" plus 9 , EndAbsoluteValue minus 32 , right brace left brace, negative 12.5 less than "x" less than 0 , right bracey=140x+62−33y>−x+9−32−12.5<x<0
68
表达式69: "y" equals negative StartAbsoluteValue, "x" plus 9 , EndAbsoluteValue minus 32 left brace, "y" greater than StartFraction, 1 Over 40 , EndFraction left parenthesis, "x" plus 6 , right parenthesis squared minus 33 , right bracey=−x+9−32y>140x+62−33
69
表达式70: "x" equals negative 1 quarter left parenthesis, "y" plus 32 , right parenthesis squared left brace, negative 32 less than "y" less than negative 28 , right bracex=−14y+322−32<y<−28
70
表达式71: "y" equals 1 eighth left parenthesis, "x" , right parenthesis squared minus 30 left brace, "x" greater than negative 1 quarter left parenthesis, "y" plus 32 , right parenthesis squared , right brace left brace, 4 greater than "x" greater than negative 2 , right bracey=18x2−30x>−14y+3224>x>−2
71
表达式72: "y" equals StartFraction, 1 Over 40 , EndFraction left parenthesis, "x" minus 2 , right parenthesis squared minus 33 left brace, negative 2 less than "x" less than 8 , right bracey=140x−22−33−2<x<8
72
表达式73: "x" equals negative 1 quarter left parenthesis, "y" plus 32 , right parenthesis squared plus 8 left brace, negative 28 greater than "y" greater than negative 32 , right bracex=−14y+322+8−28>y>−32