Without plotting the points on a graph paper indicate the quadrant in which they lie:
(i) ordinate = 4, abscissa = - 3
(ii) ordinate = - 5, abscissa = 4
(iii) abscissa = -1, ordinate = -2
(iv) abscissa = -5, ordinate = 3
(v) abscissa = 2, ordinate = 1
(vi) abscissa = 7, ordinate = -4
The concept is:
(+x, +y) 
1st Quadrant
(-x, +y) 
2nd Quadrant
(-x, -y) 
3rd Quadrant
(+x, -y) 
4th Quadrant
(i) Points having ordinate = 4 and abscissa = - 3 lies in the quadrant II
(ii) Points having ordinate = - 5 and abscissa = 4 lies in the quadrant IV
(iii) Points having ordinate = - 2 and abscissa = - 1 lies in the quadrant III
(iv) Points having ordinate = 3 and abscissa = - 5 lies in the quadrant II
(v) Points having ordinate = 1 and abscissa = 2 lies in the quadrant I
(vi) Points having ordinate = - 4 and abscissa = 7 lies in the quadrant IV