The answer depends on what is plotted on the graph and what is happening with the acceleration then.
It looks pretty awesome I tell you what
curve
That kind of depends on what is being graphed. -- On a graph of acceleration vs time, the graph is a straight line that lays right on top of the x-axis, because the acceleration is a constant zero. -- On a graph of speed vs time, constant speed is a horizontal line, parallel to the x-axis. -- On a graph of distance vs time, constant speed is a straight line with a positive slope; that is, it rises as it progresses toward the right.
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).
The answer depends on what is plotted on the graph and what is happening with the acceleration then.
It looks pretty awesome I tell you what
A constant acceleration on a velocity-time graph would appear as a straight line with a non-zero slope. The slope of the line represents the acceleration, with a steeper slope indicating a greater acceleration.
curve
That kind of depends on what is being graphed. -- On a graph of acceleration vs time, the graph is a straight line that lays right on top of the x-axis, because the acceleration is a constant zero. -- On a graph of speed vs time, constant speed is a horizontal line, parallel to the x-axis. -- On a graph of distance vs time, constant speed is a straight line with a positive slope; that is, it rises as it progresses toward the right.
Straight line
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).
The answer depends on whether it is a distance-time graph, speed-time graph or something else.
On a position vs. time plot with constant acceleration, the graph would be a curved line, not a straight line. The curve would be concave upward if the acceleration is positive and concave downward if the acceleration is negative. The slope of the line would represent the velocity at any given time.
At constant speed, the distance/time graph is a straight line, whose slope is equal to the speed.
6 15 10 5 15 30
A straight line.