1.

\fGraph. y = 5 cos (x+# ) O DO GANNAOOO X pi pi 2pi 3pi 4pi O X/ pi pi 2pi 3pi 4pi -8\fGraph. y = -2 cos (x+ # ) +3 y O pi pi 2pi 3pi 4pi y NA OO O X pi pi 2pi 3pi 4pi0 00 O X -pi -2 pi 2pi 3pi 4pi 4 6- -8 y O X pi pi 2pi 3pi 4pi DO C A NO pi/2 pi/2 pi 3pi/2 Vertical Asymptotes: * = Zeros: x = Tn