Expression 1: polygon left parenthesis, left parenthesis, 0 , 0 , right parenthesis , left parenthesis, 0 , 6 , right parenthesis , left parenthesis, 6 , 6 , right parenthesis , left parenthesis, 6 , 0 , right parenthesis , right parenthesis Has graph.polygon0,0,0,6,6,6,6,0