式7: "y" equals "x" plus 15 left brace, negative 3.5 less than or equal to "x" less than or equal to negative 2 , right bracey=x+15−3.5≤x≤−2
7
式8: "y" equals negative "x" plus 5 left brace, negative 8 less than or equal to "x" less than or equal to negative 6.6 , right bracey=−x+5−8≤x≤−6.6
8
式9: "y" equals 10 left brace, negative 2.9 less than "x" less than negative 1 , right bracey=10−2.9<x<−1
9
式10: "x" equals negative 5 left brace, 12.2 less than or equal to "y" less than or equal to 14 , right bracex=−512.2≤y≤14
10
式11: "y" equals sine "x"y=sinx
11
式12: negative left parenthesis, "x" minus 10 , right parenthesis squared plus 12 left brace, 9 less than or equal to "x" less than or equal to 11 , right brace−x−102+129≤x≤11
12
式13: negative left parenthesis, "x" minus 12 , right parenthesis squared plus 12 left brace, 11 less than or equal to "x" less than or equal to 13 , right brace−x−122+1211≤x≤13
