4. Graphing Trigonometric Functions

In Exercises 35–42, determine the amplitude and period of each function. Then graph one period of the function.y = 4 cos 2πx

In Exercises 35–42, determine the amplitude and period of each function. Then graph one period of the function.y = -4 cos 1/2 x

In Exercises 43–52, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = cos(x − π/2)

In Exercises 43–52, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = 3 cos(2x − π)

In Exercises 43–52, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = 1/2 cos (3x + π/2)

In Exercises 43–52, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = −3 cos (2x − π/2)

In Exercises 43–52, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = 2 cos (2πx + 8π)

In Exercises 75–78, graph one period of each function.y = |2 cos x/2|

In Exercises 75–78, graph one period of each function.y = −|3 sin πx|

In Exercises 1–6, determine the amplitude and period of each function. Then graph one period of the function.y = 3 sin 4x

In Exercises 1–6, determine the amplitude and period of each function. Then graph one period of the function.y = 1/2 sin π/3 x

In Exercises 7–11, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = −3 cos (x + π)

In Exercises 7–11, determine the amplitude, period, and phase shift of each function. Then graph one period of the function.y = −3 sin(π/3 x − 3π)

In Exercises 1–4, graph one period of each function.y = 3 sin 2x