수식 8: "y" equals 2 left parenthesis, "x" minus 16 , right parenthesis squared plus 11 left brace, 11 less than or equal to "y" less than or equal to 16 , right bracey=2x−162+1111≤y≤16
8
수식 9: "x" equals 4 ninths left parenthesis, "y" minus 21 , right parenthesis squared plus 14x=49y−212+14
9
수식 10: "x" equals 5 left brace, 13 less than or equal to "y" less than or equal to 18 , right bracex=513≤y≤18
10
수식 11: "y" equals 3 left brace, 3 less than or equal to "x" less than or equal to 8 , right bracey=33≤x≤8
11
수식 12: "x" equals 18 left brace, 5 less than or equal to "y" less than or equal to 9 , right bracex=185≤y≤9
12
수식 13: "y" equals 9 left brace, 18 less than or equal to "x" less than or equal to 22 , right bracey=918≤x≤22
13
수식 14: "y" equals 2 "x" minus 21 left brace, 12 less than or equal to "x" less than or equal to 16 , right bracey=2x−2112≤x≤16
14
수식 15: "y" equals negative 1 half "x" plus 14 left brace, 6 less than or equal to "x" less than or equal to 20 , right bracey=−12x+146≤x≤20
