(A) −1
(B) 0
(C) 1
(D) 4
(E) 8
12 .
(A)
(B)
(C)
(D)
(E)
13 .
Figure 4One complete cycle of the graph of y = −cos x is shown in the Figure 4. What are the
coordinates of the point at which the maximum possible value of y occurs?