Expression 2: "y" equals negative StartAbsoluteValue, "x" , EndAbsoluteValue plus "a" left brace, "x" squared plus "y" squared less than or equal to 100 , right bracey=−x+ax2+y2≤100
2
Expression 3: "a" equals left bracket, negative 5 , negative 4.9...5 , right bracketa=−5,−4.9...5