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?
$A(15, -10), B(-10, -20), C(25, 0), D(-15, 25), E(-5, 0), F(0, -15), G(25, 5), H(0, 15)$
Verify your answer by plotting the points in the Cartesian plane. Use the scale $1 \, cm = 5 \, \text{units}$ on both axes.

Plot the points $(x, y)$ given by the following table:

$x$	$2$	$4$	$-3$	$-2$	$3$	$0$
$y$	$4$	$2$	$0$	$5$	$-3$	$0$

In the figure,the point identified by the coordinates $(-5, 3)$ is:

Plot the point $P(-6, 2)$ and from it draw $PM$ and $PN$ as perpendiculars to the $x$-axis and $y$-axis,respectively. Write the coordinates of the points $M$ and $N$.

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