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Graph the function y = |4 cos x|.

1. 2. 3. 4. Graph the function y = |4 cos x|. {applet} {applet} {applet} {applet}. 1. 2. 3. 4. 5. What is the period of the function {image}. {image} {image} {image} {image} {image}. 1. 2. 3. 4. What is the phase shift of the function {image}. {image} {image} {image}

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Graph the function y = |4 cos x|.

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  1. 1. 2. 3. 4. Graph the function y = |4 cos x|. • {applet} • {applet} • {applet} • {applet}

  2. 1. 2. 3. 4. 5. What is the period of the function {image} • {image} • {image} • {image} • {image} • {image}

  3. 1. 2. 3. 4. What is the phase shift of the function {image} • {image} • {image} • {image} • {image}

  4. 1. 2. 3. 4. Graph the following three functions on a common screen: y = 3 x, y = - 3 x, y = 3 x cos 4 x. • {applet} • {applet} • {applet} • {applet}

  5. Find all solutions of the equation cos x = 0.8 that lie in the interval {image} . State the answer correct to two decimal places. • 0.64 • 0.93 • 1.17 • -0.49

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