The magnitude of the slope is the radial speed: that is, the speed towards or away from the starting point. This is not the speed of the object because it takes no account of the component of motion in a direction perpendicular to the line joining the object to the starting point.
It is false
A straight horizontal one does.
The slope of the line of a distance versus time graph is the velocity of the object. If this is a constant, in other words the graph is a straight line, the object is not changing its velocity and so is not accelerating. If the object is accelerating, the velocity of the object will be changing, thus the graph will not be a straight line, but a curve - the amount of curvature (and direction) tells you how much the object is accelerating (and in what direction - velocity and acceleration are vector quantities with both magnitude and direction).
It is not possible to sketch anything using this browser. The speed of a body cannot be determined from a distance-time graph. The slope of the graph is a measure of the radial velocity - that is the speed directly towards or directly away from the starting point. However, there is absolutely no information of any motion in a transverse direction. Since motion in this direction cannot be assumed to be 0, the distance-time graph cannot be used to determine speed.
distance-time graph
instantaneous magnitude of velocity
the slope show the velocity of the object which show its direction and magnitude.
The slope of the speed-vs-time graph is the magnitude of acceleration.
Speed-Versus-Time, Distance-Versus-Time.
speed (magnitude of velocity)
distance and time
speed
speed
it is a positive relationship
if the speed is zero then the distance versus time line will be horizontal
If a position versus time graph is parabolic, then:Speed versus time is a straight line.Acceleration (magnitude) vs time is a horizontal line, so the acceleration is constant.The graph of height/time for a stone or a baseballtossed upward is an inverted parabola.
On a distance/time graph, the slope of the line is the speed. (Magnitude of velocity.)