#### harpazo

##### Full Member

- Joined
- Jan 31, 2013

- Messages
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Find the amplitude and period of the following functions.

1. y = - 2 - 2 cos (3pi•x)

2. y = 1 + sin (2x)

Question 1

Let A = amplitude

A = |-2|

A = 2

Let P = period

Let B = coefficient of x

P = 2pi/B

P = 2pi/3pi

P = 2/3

Yes?

Question 2

A = |1|

A = 1

P = 2pi/B

P = 2pi/2

P = π

Yes?

1. y = - 2 - 2 cos (3pi•x)

2. y = 1 + sin (2x)

Question 1

Let A = amplitude

A = |-2|

A = 2

Let P = period

Let B = coefficient of x

P = 2pi/B

P = 2pi/3pi

P = 2/3

Yes?

Question 2

A = |1|

A = 1

P = 2pi/B

P = 2pi/2

P = π

**..................................corrected**Yes?

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