Without plotting the points on a graph paper indicate the quadrant in which they lie:
(i) ordinate = 4, abscissa = ā3
(ii) ordinate = ā5, abscissa = 4
(iii) abscissa = ā1, ordinate = ā2
(iv) abscissa = ā5, ordinate = 3
(v) abscissa = 2, ordinate = 1
(vi) abscissa = 7, ordinate = ā4