In the Cartesian plane,the vertical line passing through the origin is called the.......

In the figure,$LM$ is a line parallel to the $y$-axis at a distance of $3$ units.
$(i)$ What are the coordinates of the points $P, R,$ and $Q$?
$(ii)$ What is the difference between the abscissa of the points $L$ and $M$?

The point at which the two coordinate axes meet is called the

If $(2x - 3, y + 3)$ and $(x + 7, 2y - 2)$ are the same point in the coordinate plane,then the values of $x$ and $y$ are .......... respectively.

The line joining $(8, 8)$ and $(-8, 8)$ is parallel to which axis?

The ordinate of all points on the $x$-axis is: