It depends what you wish to show.
Usually the x-axis of a bar graph shows a control range, and is plotted on the bottom of the graph. Time is a common x-axis example.
Speed can be shown on a graph of position versus time, and acceleration can be shown on a graph of speed versus time.
A pie graph does not have an axis.
It is a line chart which usually starts at the origin, goes up in the first quadrant. It may return to the horizontal axis.
No. Generally speaking, a trend graph has time on the horizontal axis. That is not always the case with line graphs.
The independent variable, in this case time, is on the horizontal axis of a speed graph.
Speed = distance / time A line graph with distance on the vertical axis and time on the horizontal axis could be used to determine speed. The speed would equal the slope of the line. Alternatively, a line graph with distance/time on the vertical axis and time on the horizontal axis would show speed. The acceleration would equal the slope of the line.
X axis is time. Y-axis is distance traveled
constant speed
If a graph shows distance on the vertical axis and time on the horizontal axis, and the speed is steadily increasing, the line representing speed will be a straight line.
time, distance
The straight horizontal line on the graph says: "Whatever time you look at, the speed is always the same". This is the graph of an object moving with constant speed.
No. If the horizontal axis is time, and the vertical axis is speed, and you're standing still,Then the graph is perfectly horizontal, and it coincides with the horizontal axis.
The given speed is constant for the given period
Constant speed ... zero acceleration.
something which decreases over time e.g. speed of a car when the brakes are applied. Time on the x-axis and speed on the y-axis of the graph
The graph you described is a speed-time plot. If the line is horizontal, that indicates no change in speed over time. In other words, there is no acceleration (acceleration is zero), since there is no change in speed.