Expression 5: "f" Subscript, 4 , Baseline left parenthesis, "x" , right parenthesis equals 4 minus "x" left brace, "x" greater than 1 , right bracef4x=4−xx>1
5
Hidden Label: left parenthesis, negative 2 , "f" Subscript, 2 , Baseline left parenthesis, negative 2 , right parenthesis , right parenthesis−2,f2−2
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6
Hidden Label: left parenthesis, negative 2 , 2 , right parenthesis−2,2
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7
Hidden Label: left parenthesis, negative 1 , 5 thirds , right parenthesis−1,53
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8
Hidden Label: left parenthesis, 1 , 3 , right parenthesis1,3