Question

7.
Consider the graph of the cosine function shown below.

a. Find the period and amplitude of the cosine function.
b. At what values of for do the maximum value(s), minimum values(s), and zeros occur?

Answer 1

I believe that amplitude is how much it was stretched. Since the cos function is -1<x<1 and in the graoh it goes from -4<x<4. So the amplitude is: _____

Period is \(\frac{ \pi }{ 2 }\)