what is represented on the x-axis and it's units ?

Answer:
X and Y-Axis Definition and Difference
The horizontal axis is represented by the x-axis and the vertical axis is represented by the y-axis. The point where the X and Y-axis intersect is known as the origin and is used as the reference point for the plane.
Step-by-step explanation:
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The X-axis is also known as abscissa.
The x-axis represents the time of motion measured in seconds.
From the given graph we can deduce the following;
Thus, the we can conclude the x-axis represents the time of motion measured in seconds.
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