Expression 4: "y" equals left brace, 1.0 0 0 0 0 1 less than or equal to "x" less than or equal to 2 : negative .5log left parenthesis, "x" minus 1 , right parenthesis minus 1 , right bracey=1.000001≤x≤2:−.5logx−1−1
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Expression 5: "y" equals left brace, 0 less than or equal to "x" less than or equal to 2 : 1 , right bracey=0≤x≤2:1
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Expression 6: left parenthesis, "x" minus 3 , right parenthesis squared plus "y" squared equals 1x−32+y2=1
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Expression 7: "y" equals left brace, negative .5 less than or equal to "x" less than or equal to 0 : negative tan left parenthesis, "x" minus .4 , right parenthesis minus 1.2 , right bracey=−.5≤x≤0:−tanx−.4−1.2