00:01
Now there is a question to say that the graph of one complete period is given as this is x, this is y, we have 9, we have minus 9, okay, like this, this is 1 by 4, minus 1 by 4, minus 3 by 4, 0 comma 0.
00:42
So, first of all i need to find the amplitude.
00:45
Amplitude is maximum displacement from the mean position.
00:49
So, mean position means the midline.
00:51
Definitely this is going to be the midline which is between 9 and minus 9.
00:54
So, y axis or x axis is the midline.
00:58
Amplitude is this which is 9, okay, period will be this complete value of x.
01:09
So, this is 1 by 4 minus minus 3 by 4, 4 by 4 which is equal to 1.
01:18
This distance is known as the period.
01:21
So, period will be equal to 1...