There is no reason why any graph should start from any particular point.
A bar graph's data doesn't always start with zero but the scale on the y axis should. If you are not going to start the scale with zero then you have to put a squiggly line at the bottom to show that you skipped this space.
The units are whatever you make them! It helps, though if the units are the same on the x-axis (horizontal axis) as well. Unless of course you are skipping from zero to some large number before you start your graph. Anyway, you can make each line one unit, or you can make each line 5 units, or whatever you want! Depends on what you're graphing, but usually for a straight line, you use units of 1
A broken scale is a symbol used when a scale on the graph starts at a big number. It can be used on the x and y axis. It looks like the number 3 but with straight lines so it is a zig-zag and is places ON the axis line eg if the scale on the y axis starts at 324, you would write zero then the broken scale ON the line then 324.
it means that from zero to the first number next to the graph is not in the same order as the other numbers. for example it might me 0,10,15,20,25. there will be a squiggly line after 0 because 0+5 is not 10 and the pattern here is adding 5 each time. hope this helps:)
line graphs show a change over time
Unless it is a direct proportion, the straight line does not have to start from zero.
For motion at constant speed along a straight line, the acceleration is zero.
120?
It means that the object in question is moving at a constant speed.If the graph is a straight horizontal line, then the speed is zero.
Yes
Constant speed. Zero acceleration.
if it touches at three points it is a straight line. Since it is also an asymptote, it will be a straight horizontal line (zero slope)
It means that the object was accelerating or decelerating at least part of the time.
acceleration is zero
Constant speed ... zero acceleration.
That would depend on the type of axes. If it is an acceleration vs. time graph, then there would be a continual reading of 0m/s/s acceleration, and the graph would be a straight line indicating 0m/s/s at all times. If it is a velocity vs time graph, then there would be a constant value of velocity at all times. If it is a displacement vs time graph, there would be a straight, continuously increasing line.
It will be a horizontal line