The point whose ordinate is $4$ and which lies on the $y$-axis is

The distance between the points $(5, -3)$ and $(5, 8)$ is............

The line joining $X(3, 5)$ and $Y(-4, 5)$ is parallel to the $\ldots \ldots \ldots$ axis.

In which quadrant does a point lie if its coordinates have opposite signs?

In which quadrant or on which axis does each of the following points lie?
$P(-3, -5), Q(0, 5), R(3, 4), S(4, 3), T(5, 0), U(-3, 5), V(5, -3), W(0, -3), X(-3, 0), Y(3, -5), Z(-5, 3)$
Verify your answer by plotting the points in the Cartesian plane.

If the coordinates of the two points are $P(-2, 3)$ and $Q(-3, 5),$ then (abscissa of $P$) $-$ (abscissa of $Q$) is