Topic 7: Trigonometric Function Review

The distance between the midline and the minimum or maximum of a periodic function is called the ________.

• amplitude

• frequency

• phase shift

• reference angle

A horizontal translation of a periodic function is often called a ________. Options: amplitude, frequency, initial side, phase shift, reference angle, terminal side.

• phase shift

• amplitude

• frequency

• reference angle

If an angle θ is in standard position, the ________ for θ is the acute angle formed by the x-axis and the terminal side of θ.

• amplitude

• frequency

• initial side

• reference angle

Convert the angle measure 136° to radians.

• 2.37 radians

• 2.45 radians

• 2.56 radians

• 2.72 radians

• 60 degrees

• 90 degrees

• 120 degrees

• 150 degrees

• 280 feet

• 1800 feet

• 560 feet

• 1000 feet

Find the sine and cosine for the angle 135°.

• sin 135° = 0.707, cos 135° = -0.707

• sin 135° = 0.5, cos 135° = -0.5

• sin 135° = 1, cos 135° = 0

• sin 135° = -0.707, cos 135° = 0.707

• Sine: 1/2, Cosine: -√3/2

• Sine: -1/2, Cosine: √3/2

• Sine: √3/2, Cosine: 1/2

• Sine: -√3/2, Cosine: -1/2

Find the sine and cosine for the angle 420°.

• sin 420° = √3/2, cos 420° = 1/2

• sin 420° = 1/2, cos 420° = √3/2

• sin 420° = -1/2, cos 420° = √3/2

• sin 420° = √3/2, cos 420° = -1/2