表达式10: "y" equals negative 4 fifths "x" plus 4 left brace, negative 14 less than or equal to "x" less than or equal to 15 , right bracey=−45x+4−14≤x≤15
10
表达式11: "y" equals 4 fifths "x" minus 4 left brace, negative 14 less than or equal to "x" less than or equal to 15 , right bracey=45x−4−14≤x≤15
11
表达式12: "y" equals negative 4 fifths "x" minus 4 left brace, negative 15 less than or equal to "x" less than or equal to 10 , right bracey=−45x−4−15≤x≤10
12
表达式13:
13
表达式14: "y" equals 12 left brace, negative 15 less than or equal to "x" less than or equal to 15 , right bracey=12−15≤x≤15
14
表达式15: "y" equals negative 12 left brace, negative 15 less than or equal to "x" less than or equal to 15 , right bracey=−12−15≤x≤15
15
表达式16: "x" equals negative 10 left brace, negative 15 less than or equal to "y" less than or equal to 15 , right bracex=−10−15≤y≤15
16
表达式17: "x" equals 10 left brace, negative 15 less than or equal to "y" less than or equal to 15 , right bracex=10−15≤y≤15
