What is the period for the graph of y=cos(0)? (sketch a graph to determine the answer.) a.180 b.90 c.360 d.270

We have the following equation:
 y = cos (0)
 The first thing you should know is that the period of a function is that value for which the function repeats itself.
 We have then:
 y = cos (0) = 1
 y = cos (360) = 1
 Therefore, the period is 360.
 
 the period for the graph of y = cos (0) is:
 c.360