How do you determine the amplitude, period, and shifts to graph #y = - cos (2x - pi) + 1#?
The amplitude is -1, the period is
The general pattern for a cosine function would be
To find the period of the graph, we must find the value of b first. In this case, we have to factor out the 2, in order to isolate
The equation now looks like this:
We can now clearly see that the value of b is 2.
To find the period, we divide