The slope of a distance versus time graph provides the instantaneous speed of an object. If data from this graph is then used to construct a speed versus time graph, the slope of that graph would provide the instantaneous acceleration.
That means the speed (the slope of the position-time graph) is decreasing.
if the speed is zero then the distance versus time line will be horizontal
Speed can be shown on a graph of position versus time, and acceleration can be shown on a graph of speed versus time.
initial velocity maybe maybe speed ____ of a distance versus time graph is speed
If the line formed by the graph is straight, the speed is constant. A horizontal line would show the object as stationary.
Yes. Speed is the rate at which distance changes over time. In calculus terms v = dx/dt, or the slope of the distance vs. time graph. If the slope of the distance vs. time graph is a straight line, the speed is constant.
Note that the graph can't show velocity, only speed. The slope of the graph is the magnitude of acceleration. The area under the graph is distance covered.