Consider the two linear equations x=−3 and y=4 in the Cartesian plane.
(i) State which of the above two lines is parallel to the x-axis and which is parallel to the y-axis.
(ii) Explain, using the meaning of abscissa and ordinate, why every point on the line x=−3 has the same x-coordinate, while every point on the line y=4 has the same y-coordinate.
(iii) Write the coordinates of any three distinct points that lie on each of the two lines.