AnswersAlgebra 2 MP 234 CHSChanges in Period and Phase Shift of Sine and Cosine Functions

Changes in Period and Phase Shift of Sine and Cosine Functions Answers

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What is the equation of the graph below?

Question illustration
A
y = sine (StartFraction x Over 3 EndFraction)
Option A
B
y = sin(3x)
C
y = sin(0.3x)
D
y = sine (StartFraction 2 x Over 3 EndFraction)
Option D
3

What is the general equation of a cosine function with an amplitude of 3, a period of , and a horizontal shift of ?

Question illustration
A
y = 4 pi cosine (3 (x minus pi))
Option A
B
y = 3 cosine (4 pi (x + pi))
Option B
C
y = 3 cosine (0.5 (x + pi))
Option C
D
y = 4 pi cosine (0.2 (x + pi))
Option D
4

Which of the following is the graph of y = sin(0.5x)?

A
On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 24 pi.
Option A
B
On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 2 pi.
Option B
C
On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 1 cycle at 8 pi.
Option C
D
On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 8 pi.
Option D
5

Which of the following could be the equation of the function below?

Question illustration
A
y = negative 2 cosine (4 (x + pi)) minus 1
Option A
B
y = 2 cosine (x + pi) + 1
Option B
C
y = negative 2 cosine (2 (x + pi)) minus 1
Option C
D
y = 2 cosine (4 (x + pi)) + 2
Option D

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