Expression 19: left brace, "l" Subscript, 1 , Baseline plus "x" Subscript, 1 , Baseline greater than or equal to "x" greater than or equal to "x" Subscript, 1 , Baseline , right brace left parenthesis, "y" Subscript, 1 , Baseline plus "l" Subscript, 1 , Baseline , right parenthesis greater than or equal to "y" greater than or equal to "y" Subscript, 1 , Baseline Has graph. To audio trace, press ALT+T.l1+x1≥x≥x1y1+l1≥y≥y1
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Expression 20: left brace, "l" Subscript, 1 , Baseline plus "x" Subscript, 1 , Baseline less than or equal to "x" less than or equal to "x" Subscript, 1 , Baseline , right brace left parenthesis, "y" Subscript, 1 , Baseline plus "l" Subscript, 1 , Baseline , right parenthesis less than or equal to "y" less than or equal to "y" Subscript, 1 , Baseline Has graph.l1+x1≤x≤x1y1+l1≤y≤y1
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Expression 21: left brace, "l" Subscript, 2 , Baseline plus "x" Subscript, 2 , Baseline greater than or equal to "x" greater than or equal to "x" Subscript, 2 , Baseline , right brace left parenthesis, "y" Subscript, 2 , Baseline plus "l" Subscript, 2 , Baseline , right parenthesis greater than or equal to "y" greater than or equal to "y" Subscript, 2 , Baseline Has graph.l2+x2≥x≥x2y2+l2≥y≥y2
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Expression 22: left brace, "l" Subscript, 2 , Baseline plus "x" Subscript, 2 , Baseline less than or equal to "x" less than or equal to "x" Subscript, 2 , Baseline , right brace left parenthesis, "y" Subscript, 2 , Baseline plus "l" Subscript, 2 , Baseline , right parenthesis less than or equal to "y" less than or equal to "y" Subscript, 2 , Baseline Has graph. To audio trace, press ALT+T.l2+x2≤x≤x2y2+l2≤y≤y2
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Expression 23: left brace, "l" Subscript, 3 , Baseline plus "x" Subscript, 3 , Baseline greater than or equal to "x" greater than or equal to "x" Subscript, 3 , Baseline , right brace left parenthesis, "y" Subscript, 3 , Baseline plus "l" Subscript, 3 , Baseline , right parenthesis greater than or equal to "y" greater than or equal to "y" Subscript, 3 , Baseline Has graph. To audio trace, press ALT+T.l3+x3≥x≥x3y3+l3≥y≥y3
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Expression 24: left brace, "l" Subscript, 3 , Baseline plus "x" Subscript, 3 , Baseline less than or equal to "x" less than or equal to "x" Subscript, 3 , Baseline , right brace left parenthesis, "y" Subscript, 3 , Baseline plus "l" Subscript, 3 , Baseline , right parenthesis less than or equal to "y" less than or equal to "y" Subscript, 3 , Baseline Has graph.l3+x3≤x≤x3y3+l3≤y≤y3
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Expression 25: "l" Subscript, 1 , Baseline equals left parenthesis, "a" "x" Subscript, 1 , Baseline plus "b" minus "y" Subscript, 1 , Baseline , right parenthesis equals 0.2 1 2 7 0 2 9 7 8 5 8 9l1=ax1+b−y1
equals=
0.2 1 2 7 0 2 9 7 8 5 8 90.212702978589
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Expression 26: "l" Subscript, 2 , Baseline equals left parenthesis, "a" "x" Subscript, 2 , Baseline plus "b" minus "y" Subscript, 2 , Baseline , right parenthesis equals negative 0.5 4 3 4 7 1 5 2 3 5 5 4l2=ax2+b−y2
equals=
negative 0.5 4 3 4 7 1 5 2 3 5 5 4−0.543471523554
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Expression 27: "l" Subscript, 3 , Baseline equals left parenthesis, "a" "x" Subscript, 3 , Baseline plus "b" minus "y" Subscript, 3 , Baseline , right parenthesis equals 0.3 3 0 7 6 8 5 4 4 9 6 5l3=ax3+b−y3
