Expression 5: left parenthesis, "x" minus 8 , right parenthesis squared plus left parenthesis, "y" plus 4 , right parenthesis squared equals left parenthesis, 0.5 , right parenthesis squaredx−82+y+42=0.52
5
Expression 6: "y" plus 1 equals negative 0.5 left parenthesis, "x" minus 6 , right parenthesis squared left brace, 4 less than or equal to "x" less than or equal to 8 , right bracey+1=−0.5x−624≤x≤8
6
Expression 7: "y" equals negative 3 left brace, 4 less than or equal to "x" less than or equal to 8 , right bracey=−34≤x≤8