That the object whose velocity is being graphed has reversed direction (and is now going in the opposite direction).
Velocity is a vector quantity: it has both magnitude and direction.
The point where a graph crosses an axis is known as an "intercept." Specifically, the x-intercept is where the graph crosses the x-axis, while the y-intercept is where it crosses the y-axis. These points indicate the values of the variable when the other variable is zero.
x = 0
The real solutions are the points at which the graph of the function crosses the x-axis. If the graph never crosses the x-axis, then the solutions are imaginary.
horizontial axis
velocity is nothing but speed of a body in the given direction. suppose if body is moving with constant velocity then VT graph will be parallel to the X -axis, if not then the VT graph is not parallel to the X-axis it means then object is moving with different velocity or it has its dierection or both velocity and aswell as direction.
In a velocity-time graph it will be the time axis (where velocity = 0). On a distance-time graph it will be a line parallel to the time axis: distance = some constant (which may be 0).
This is called the y-intercept and represents the value of the plotted function at x = 0.The place where the graph crosses the y axis is called the y intercept.
The x-axis is time and the y-axis is velocity.
It is at point of origin which is at (0, 0)
The y intercept
y-intercept
you can't....it's merely impossible! Assuming it is a graph of velocity vs time, it's not impossible, it's simple. Average velocity is total distance divided by total time. The total time is the difference between finish and start times, and the distance is the area under the graph between the graph and the time axis.