8π 4 The equation is: = 5cos ⎛ 1 ⎞ . y x ⎜ 4 ⎟ ⎝ ⎠ (πx 2 cos − y 76. The graph is a sine graph with amplitude 4 73. 6) and period 8π. π 3 Amplitude: ω Find : 8π= 2 = − 2 = 2 A ω ω = = 2π 1 = 2π = 2π = T Period: 2 3 8πω = 2π 3 ω π 8π 4 Phase Shift: The = 4sin ⎛ 1 ⎞ . y x is: φ = 6 ω π ⎜ 4 ⎟ ⎝ ⎠
8π 4 The equation is: y = 5cos ⎛ 1 x ⎞ . ⎜ 4 ⎟ ⎝ ⎠ 73. y 2 cos (πx − 6) 3 76. The graph is a sine graph with amplitude 4 and period 8π. π Amplitude: A = − 2 = 2 Find ω : 8π= 2 ω Period: 3 3 T = 2π = 2π = 2 8πω = 2π ω = 2π = 1 ω π 8π 4 Phase Shift: φ = 6 The is: y = 4sin ⎛ 1 x ⎞ . ω π ⎜ 4 ⎟ ⎝ ⎠
62514-0132318806_ISM_02-1.docx