the graph given shows the deviation from the average daily temperature for the hours of a given day. with t = 0 corresponding to 2 a.m.

a. a. |A| = 100, P = pi/75 sec
    b. E = -150

b. a. |A| = 100, P = pi/75 sec
    b. E = 0

c. a. |A| = 150, P = pi/50 sec
    b. E = 0

d. a. |A| = 150, P = pi/50 sec
    b. E = -150