Given below are some points, with their coordinates.
$P(4,3),Q( - 3,2),R(5,1),S(0, - 4)$
What is the $X$-coordinate of point $S$?

Hint- In order to address this question, we will use the concept as a point denoted by \[A\]($X$−coordinate, $Y$−coordinate); in addition, we will use this point presentation to obtain the required coordinate of point $S$.

Complete step-by-step answer:
The points in question are $P(4,3),Q( - 3,2),R(5,1),S(0, - 4)$
In Euclidean two-dimensional space, a point is represented by an ordered pair \[\left( {{\text{X }},{\text{ Y}}} \right)\] of numbers, in which the first number conventionally represents the horizontal and is often denoted by $X$, and the second number conventionally represents the vertical and is often denoted by $Y$.
Or we can say that if there is a general point \[A\] that can be represented as a point \[A\] ($X$−coordinate, $Y$−coordinate)
In this question we have to find the $X$ coordinate of $S$ point
So we will consider only $S$point which is given as
\[S{\text{ }}\left( {{\text{ }}0,{\text{ }} - 4} \right)\]
Now we compare the values of the coordinates according to the above property to get the required coordinate
So here $X$ coordinate is \[0\]
and $Y$coordinate is \[ - 4\].
Hence the required $X$ coordinate is \[0\].

Note-The $X$-axis is considered the horizontal axis The $Y$-axis is named the vertical axis. The point where it intersects the $X$-axis and $Y$-axis is called the origin. The numbers are used to identify points on a coordinate map.