71. = 1 sin ⎛ 3 − π ⎞ y x 2 ⎜ 2 ⎟ ⎝ ⎠ Amplitude: = = 1 1 A 2 2 Period: = 2π = 2π = 4π T ω 3 3 2 Phase Shift: φ = π = 2π ω 3 = −7 sin ⎛ π + 4 ⎞ y x 3 74. ⎝ ⎠ 2 Amplitude: = − 7 = 7 A Period: = = = 2π 2π 6 T ω π 3 − 4 Phase Shift: φ = 3 = − 4 ω π π 3 72. (6 = 3 cos + 3π) y x 2 Amplitude: = = 3 3 A 2 2 Period: = 2π = 2π = π T Phase Shift: ω 6 3 φ = −3π − π = 75. The graph is a cosine graph with amplitude 5 and ω 6 2 period 8π. ω ω Find : = 8πω 2π ω = 2π = 1 8π= 2π
71. y = 1 sin ⎛ 3 x − π ⎞ 2 ⎜ 2 ⎟ ⎝ ⎠ Amplitude: A = 1 = 1 Period: 2 2 T = 2π = 2π = 4π ω 3 3 2 Phase Shift: φ = π = 2π ω 3 3 2 74. y = −7 sin ⎛ π x + 4 ⎞ ⎝ ⎠ Amplitude: A = − 7 = 7 Period: T = 2π = 2π = 6 ω π 3 − 4 Phase Shift: φ = 3 = − 4 ω π π 3 72. y = 3 cos (6 x + 3π) 2 Amplitude: A = 3 = 3 Period: 2 2 T = 2π = 2π = π Phase Shift: ω 6 3 φ = −3π − π = ω 6 2 75. The graph is a cosine graph with amplitude 5 and period 8π. Find ω : 8π= 2π ω 8πω = 2π ω = 2π = 1
62514-0132318806_ISM_02-1.docx