It should be Constant speed. The line goes straight & doesn’t change within the graph.
You must observe the object twice.
-- Look at it the first time, and make a mark where it is.
-- After some time has passed, look at the object again, and
make another mark at the place where it is.
-- At your convenience, take out your ruler, and measure the
distance between the two marks.
What you'll have is the object's "displacement" during that period
of time ... the distance between the start-point and end-point.
Technically, you won't know the actual distance it has traveled
during that time, because you don't know the route it took.
I think that the best one is determining one's sense of individuality and place in society.
frequency is equal to number of oscillations or vibrations upon time
therefore,
check picture
