運算式 19: "y" equals negative 60 left brace, 15 less than "x" less than 35 , right bracey=−6015<x<35
19
運算式 20: "y" equals "x" plus 5 left brace, negative 40 less than "x" less than 0 , right bracey=x+5−40<x<0
20
運算式 21: "y" equals negative "x" plus 5 left brace, 0 less than "x" less than 40 , right bracey=−x+50<x<40
21
運算式 22: left parenthesis, "x" plus 4 , right parenthesis squared plus left parenthesis, "y" plus 70 , right parenthesis squared equals 1 squaredx+42+y+702=12
22
運算式 23: sine left parenthesis, 3 "x" plus "c" , right parenthesis minus 81sin3x+c−81
23
運算式 24: "c" equals negative 1.9c=−1.9
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運算式 25: "x" squared positive left parenthesis, "y" plus 22 , right parenthesis squared equals "r"x2+y+222=r
25
運算式 26: "r" equals 40r=40
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運算式 27: "y" equals negative 22 left brace, negative 6.3 less than "x" less than 6.3 , right bracey=−22−6.3<x<6.3
27
運算式 28: "x" equals 0 left brace, negative 28.3 less than "y" less than negative 15.7 , right bracex=0−28.3<y<−15.7
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運算式 29: "x" equals negative 5 left brace, negative 55 less than "y" less than negative 45 , right bracex=−5−55<y<−45
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運算式 30: "y" equals negative 45 left brace, negative 5 less than "x" less than negative 1 , right bracey=−45−5<x<−1
30
運算式 31: "x" equals negative 1 left brace, negative 49 less than "y" less than negative 45 , right bracex=−1−49<y<−45
31
運算式 32: "y" equals negative 49 left brace, negative 5 less than "x" less than negative 1 , right bracey=−49−5<x<−1
32
運算式 33: "x" equals 1 left brace, negative 55 less than "y" less than negative 45 , right bracex=1−55<y<−45
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運算式 34: "y" equals negative 45 left brace, 1 less than "x" less than 6 , right bracey=−451<x<6
34
運算式 35: "y" equals negative 49 left brace, 1 less than "x" less than 4 , right bracey=−491<x<4
35
運算式 36: "x" squared plus "b" "x" plus "c" "x" left brace, negative 5 less than "x" less than 0 , right bracex2+bx+cx−5<x<0
