Answer the following questions related to the Cartesian plane.
(i) Define the terms "abscissa" and "ordinate".
(ii) Write the step-by-step procedure to plot the point P(3,−4) on a Cartesian plane.
(iii) For each of the points Q(−5,2), R(−4,−3) and S(6,7), state the quadrant in which it lies or whether it lies on an axis.