수식 9: "y" equals negative 1 quarter "x" minus 0.5 4 9 left brace, "x" greater than 0.6 0 0 3 , right brace left brace, "y" greater than negative 0.7 9 9 , right bracey=−14x−0.549x>0.6003y>−0.799
9
수식 10: "y" equals 3 "x" minus 3.7 9 left brace, "x" less than 1.3 9 7 , right brace left brace, "y" greater than negative 0.7 9 8 , right bracey=3x−3.79x<1.397y>−0.798
10
수식 11: "y" equals 3 "x" minus 4.5 left brace, "x" greater than 1.2 1 3 , right brace left brace, "y" less than 0.3 6 , right bracey=3x−4.5x>1.213y<0.36
11
수식 12: "y" equals negative 1 third "x" plus 0.1 left brace, "x" greater than 1.3 8 , right brace left brace, "y" greater than negative 0.5 , right bracey=−13x+0.1x>1.38y>−0.5
12
수식 13: "y" equals negative 1 third "x" plus 0.8 9 left brace, "x" greater than 1.6 1 7 , right brace left brace, "y" greater than 0.2 2 , right bracey=−13x+0.89x>1.617y>0.22
13
수식 14: "y" equals negative 1 third "x" minus 0.4 5 left brace, "x" greater than 1.2 1 5 , right brace left brace, "y" greater than negative 1 , right bracey=−13x−0.45x>1.215y>−1
14
수식 15: "y" equals 3 "x" minus 6.5 left brace, "x" less than 2.2 2 , right brace left brace, "y" greater than negative 1.0 5 , right bracey=3x−6.5x<2.22y>−1.05
15
수식 16: "y" equals "x" minus 2.5 left brace, "x" greater than 2 , right brace left brace, "y" less than 0 , right bracey=x−2.5x>2y<0
16
수식 17: "y" equals 3 "x" minus 7.5 left brace, "x" greater than 2.1 2 8 , right brace left brace, "y" less than 0 , right bracey=3x−7.5x>2.128y<0
