表达式13: "f" left parenthesis, "x" , right parenthesis equals negative StartRoot, "x" plus 1620000 , EndRoot left brace, negative 2200 less than "x" less than negative 800 , right bracefx=−x+1620000−2200<x<−800
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表达式14: "f" left parenthesis, "x" , right parenthesis equals negative StartRoot, "x" plus 1520000 , EndRoot left brace, negative 2200 less than "x" less than negative 800 , right bracefx=−x+1520000−2200<x<−800
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表达式15: "f" left parenthesis, "x" , right parenthesis equals negative StartRoot, "x" plus 1420000 , EndRoot left brace, negative 2200 less than "x" less than negative 800 , right bracefx=−x+1420000−2200<x<−800
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表达式16: "f" left parenthesis, "x" , right parenthesis equals negative StartRoot, "x" plus 1320000 , EndRoot left brace, negative 2200 less than "x" less than negative 800 , right bracefx=−x+1320000−2200<x<−800
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表达式17: "f" left parenthesis, "x" , right parenthesis equals StartFraction, 1 Over 10000 "x" , EndFraction left brace, negative 300 less than "x" less than 300 , right bracefx=110000x−300<x<300
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表达式18: "f" left parenthesis, "x" , right parenthesis equals negative log "b" "x" negative 900 left brace, negative 250 less than "x" less than 200 , right bracefx=−logbx−900−250<x<200
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表达式19: "f" left parenthesis, "x" , right parenthesis equals negative log "x" negative 900 left brace, negative 250 less than "x" less than 250 , right bracefx=−logx−900−250<x<250
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表达式20: "f" left parenthesis, "x" , right parenthesis equals "x" positive negative 625 left brace, negative 250 less than "x" less than 0 , right bracefx=x+−625−250<x<0
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表达式21: "f" left parenthesis, "x" , right parenthesis equals negative "x" positive negative 625 left brace, negative 0 less than "x" less than 250 , right bracefx=−x+−625−0<x<250
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表达式22: 8000 "y" equals "x" squared minus 11000000 left brace, negative 1120 less than "x" less than 1120 , right brace8000y=x2−11000000−1120<x<1120
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表达式23: "y" equals StartAbsoluteValue, "x" plus 2 , EndAbsoluteValue negative 2000 left brace, negative 853 less than "x" less than 853 , right bracey=x+2−2000−853<x<853
