00:01
We have a graph of the velocity of a function, and we're going to answer a few items about that.
00:06
First, we want to know where the velocity is positive.
00:10
Well, since the velocity is the y coordinate, anywhere where the graph is above the x -axis, you would have a positive velocity.
00:18
So that's in the time interval from 0 to 1, as well as the time interval between 3 and 5.
00:27
Second question asked for the displacement of the object during the interval from 0 to 3.
00:34
The displacement does take into account directions.
00:37
So the area under the curve is the distance that it traveled.
00:41
In the first second it traveled 12, and in the second two seconds it traveled 16.
00:47
But since that's below the x -axis, that's in a negative direction.
00:52
So its displacement is 12 plus negative 16 or 12 minus 16, which is.
00:57
Is negative 4.
01:00
Part c, one of the total distance traveled...