Find the Phase Shift of a Sine or Cosine Function - Pre-Calculus
Card 0 of 28
Find the phase shift of 
.
Find the phase shift of .
In the formula,
.
 represents the phase shift.
Plugging in what we know gives us:
.
Simplified, the phase is then 
.
In the formula,
.
 represents the phase shift.
Plugging in what we know gives us:
.
Simplified, the phase is then .
Compare your answer with the correct one above
Which equation would produce this graph?

Which equation would produce this graph?
This is the graph of sine, but shifted to the right 
 units. To reflect this shift, 
 should be subtracted from x.
Thus resulting in
.
This is the graph of sine, but shifted to the right  units. To reflect this shift, 
 should be subtracted from x.
Thus resulting in
.
Compare your answer with the correct one above
Which equation would produce this sine graph?

Which equation would produce this sine graph?
The graph has an amplitude of 2 but has been shifted down 1:

In terms of the equation, this puts a 2 in front of sin, and -1 at the end.
This makes it easier to see that the graph starts \[is at 0\] where 
.
The phase shift is 
 to the right, or 
.
The graph has an amplitude of 2 but has been shifted down 1:
In terms of the equation, this puts a 2 in front of sin, and -1 at the end.
This makes it easier to see that the graph starts \[is at 0\] where .
The phase shift is  to the right, or 
.
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Please choose the best answer from the following choices.
Describe the phase shift of the following function:

Please choose the best answer from the following choices.
Describe the phase shift of the following function:
Since 
 is being added inside the parentheses, there will be a horizontal shift. The goal is to maintain zero within the parentheses so you will shift left 
 radians.
Since  is being added inside the parentheses, there will be a horizontal shift. The goal is to maintain zero within the parentheses so you will shift left 
 radians.
Compare your answer with the correct one above
Write the equation for a sine graph with a maximum at 
 and a minimum at 
.
Write the equation for a sine graph with a maximum at  and a minimum at 
.
To write this equation, it is helpful to sketch a graph:

Indicating the maximum and minimum points, we can see that this graph has been shifted up 1, and it has an amplitude of 2.
The distance from the maximum to the minimum point is half the wavelength. In this case, the wavelength is 
. That means the full wavelength is 
, and the frequency is 1.
This sketch shows that the graph starts to the left of the y-axis. To figure out exactly where, subtract 
 from the maximum x-coordinate, 
:
 .
Our equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This graph has an equation of
.
To write this equation, it is helpful to sketch a graph:

Indicating the maximum and minimum points, we can see that this graph has been shifted up 1, and it has an amplitude of 2.
The distance from the maximum to the minimum point is half the wavelength. In this case, the wavelength is . That means the full wavelength is 
, and the frequency is 1.
This sketch shows that the graph starts to the left of the y-axis. To figure out exactly where, subtract  from the maximum x-coordinate, 
:
 .
Our equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This graph has an equation of
.
Compare your answer with the correct one above
Write the equation for a cosine graph with a maximum at 
 and a minimum at 
.
Write the equation for a cosine graph with a maximum at  and a minimum at 
.
In order to write this equation, it is helpful to sketch a graph:

The dotted line is at 
, where the maximum occurs and therefore where the graph starts. This means that the graph is shifted to the right 
.
The distance from the maximum to the minimum is half the entire wavelength. Here it is 
.
Since half the wavelength is 
, that means the full wavelength is 
 so the frequency is just 1.
The amplitude is 3 because the graph goes symmetrically from -3 to 3.
The equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This equation is
.
In order to write this equation, it is helpful to sketch a graph:

The dotted line is at , where the maximum occurs and therefore where the graph starts. This means that the graph is shifted to the right 
.
The distance from the maximum to the minimum is half the entire wavelength. Here it is .
Since half the wavelength is , that means the full wavelength is 
 so the frequency is just 1.
The amplitude is 3 because the graph goes symmetrically from -3 to 3.
The equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This equation is
.
Compare your answer with the correct one above
Write the equation for a sine function with a maximum at 
 and a minimum at 
.
Write the equation for a sine function with a maximum at  and a minimum at 
.
The equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
To write the equation, it is helpful to sketch a graph:

From plotting the maximum and minimum, we can see that the graph is centered on 
 with an amplitude of 3.
The distance from the maximum to the minimum is half the wavelength. For this graph, this distance is 
.
This means that the total wavelength is 
 and the frequency is 1.
The graph starts 
 behind the maximum point. To determine this x value, subtract 
 from the x-coordinate of the maximum:

Our equation is:
.
The equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
To write the equation, it is helpful to sketch a graph:

From plotting the maximum and minimum, we can see that the graph is centered on  with an amplitude of 3.
The distance from the maximum to the minimum is half the wavelength. For this graph, this distance is .
This means that the total wavelength is  and the frequency is 1.
The graph starts  behind the maximum point. To determine this x value, subtract 
 from the x-coordinate of the maximum:
Our equation is:
.
Compare your answer with the correct one above
Find the phase shift of 
.
Find the phase shift of .
In the formula,
.
 represents the phase shift.
Plugging in what we know gives us:
.
Simplified, the phase is then 
.
In the formula,
.
 represents the phase shift.
Plugging in what we know gives us:
.
Simplified, the phase is then .
Compare your answer with the correct one above
Which equation would produce this graph?

Which equation would produce this graph?
This is the graph of sine, but shifted to the right 
 units. To reflect this shift, 
 should be subtracted from x.
Thus resulting in
.
This is the graph of sine, but shifted to the right  units. To reflect this shift, 
 should be subtracted from x.
Thus resulting in
.
Compare your answer with the correct one above
Which equation would produce this sine graph?

Which equation would produce this sine graph?
The graph has an amplitude of 2 but has been shifted down 1:

In terms of the equation, this puts a 2 in front of sin, and -1 at the end.
This makes it easier to see that the graph starts \[is at 0\] where 
.
The phase shift is 
 to the right, or 
.
The graph has an amplitude of 2 but has been shifted down 1:
In terms of the equation, this puts a 2 in front of sin, and -1 at the end.
This makes it easier to see that the graph starts \[is at 0\] where .
The phase shift is  to the right, or 
.
Compare your answer with the correct one above
Please choose the best answer from the following choices.
Describe the phase shift of the following function:

Please choose the best answer from the following choices.
Describe the phase shift of the following function:
Since 
 is being added inside the parentheses, there will be a horizontal shift. The goal is to maintain zero within the parentheses so you will shift left 
 radians.
Since  is being added inside the parentheses, there will be a horizontal shift. The goal is to maintain zero within the parentheses so you will shift left 
 radians.
Compare your answer with the correct one above
Write the equation for a sine graph with a maximum at 
 and a minimum at 
.
Write the equation for a sine graph with a maximum at  and a minimum at 
.
To write this equation, it is helpful to sketch a graph:

Indicating the maximum and minimum points, we can see that this graph has been shifted up 1, and it has an amplitude of 2.
The distance from the maximum to the minimum point is half the wavelength. In this case, the wavelength is 
. That means the full wavelength is 
, and the frequency is 1.
This sketch shows that the graph starts to the left of the y-axis. To figure out exactly where, subtract 
 from the maximum x-coordinate, 
:
 .
Our equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This graph has an equation of
.
To write this equation, it is helpful to sketch a graph:

Indicating the maximum and minimum points, we can see that this graph has been shifted up 1, and it has an amplitude of 2.
The distance from the maximum to the minimum point is half the wavelength. In this case, the wavelength is . That means the full wavelength is 
, and the frequency is 1.
This sketch shows that the graph starts to the left of the y-axis. To figure out exactly where, subtract  from the maximum x-coordinate, 
:
 .
Our equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This graph has an equation of
.
Compare your answer with the correct one above
Write the equation for a cosine graph with a maximum at 
 and a minimum at 
.
Write the equation for a cosine graph with a maximum at  and a minimum at 
.
In order to write this equation, it is helpful to sketch a graph:

The dotted line is at 
, where the maximum occurs and therefore where the graph starts. This means that the graph is shifted to the right 
.
The distance from the maximum to the minimum is half the entire wavelength. Here it is 
.
Since half the wavelength is 
, that means the full wavelength is 
 so the frequency is just 1.
The amplitude is 3 because the graph goes symmetrically from -3 to 3.
The equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This equation is
.
In order to write this equation, it is helpful to sketch a graph:

The dotted line is at , where the maximum occurs and therefore where the graph starts. This means that the graph is shifted to the right 
.
The distance from the maximum to the minimum is half the entire wavelength. Here it is .
Since half the wavelength is , that means the full wavelength is 
 so the frequency is just 1.
The amplitude is 3 because the graph goes symmetrically from -3 to 3.
The equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This equation is
.
Compare your answer with the correct one above
Write the equation for a sine function with a maximum at 
 and a minimum at 
.
Write the equation for a sine function with a maximum at  and a minimum at 
.
The equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
To write the equation, it is helpful to sketch a graph:

From plotting the maximum and minimum, we can see that the graph is centered on 
 with an amplitude of 3.
The distance from the maximum to the minimum is half the wavelength. For this graph, this distance is 
.
This means that the total wavelength is 
 and the frequency is 1.
The graph starts 
 behind the maximum point. To determine this x value, subtract 
 from the x-coordinate of the maximum:

Our equation is:
.
The equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
To write the equation, it is helpful to sketch a graph:

From plotting the maximum and minimum, we can see that the graph is centered on  with an amplitude of 3.
The distance from the maximum to the minimum is half the wavelength. For this graph, this distance is .
This means that the total wavelength is  and the frequency is 1.
The graph starts  behind the maximum point. To determine this x value, subtract 
 from the x-coordinate of the maximum:
Our equation is:
.
Compare your answer with the correct one above
Find the phase shift of 
.
Find the phase shift of .
In the formula,
.
 represents the phase shift.
Plugging in what we know gives us:
.
Simplified, the phase is then 
.
In the formula,
.
 represents the phase shift.
Plugging in what we know gives us:
.
Simplified, the phase is then .
Compare your answer with the correct one above
Which equation would produce this graph?

Which equation would produce this graph?
This is the graph of sine, but shifted to the right 
 units. To reflect this shift, 
 should be subtracted from x.
Thus resulting in
.
This is the graph of sine, but shifted to the right  units. To reflect this shift, 
 should be subtracted from x.
Thus resulting in
.
Compare your answer with the correct one above
Which equation would produce this sine graph?

Which equation would produce this sine graph?
The graph has an amplitude of 2 but has been shifted down 1:

In terms of the equation, this puts a 2 in front of sin, and -1 at the end.
This makes it easier to see that the graph starts \[is at 0\] where 
.
The phase shift is 
 to the right, or 
.
The graph has an amplitude of 2 but has been shifted down 1:
In terms of the equation, this puts a 2 in front of sin, and -1 at the end.
This makes it easier to see that the graph starts \[is at 0\] where .
The phase shift is  to the right, or 
.
Compare your answer with the correct one above
Please choose the best answer from the following choices.
Describe the phase shift of the following function:

Please choose the best answer from the following choices.
Describe the phase shift of the following function:
Since 
 is being added inside the parentheses, there will be a horizontal shift. The goal is to maintain zero within the parentheses so you will shift left 
 radians.
Since  is being added inside the parentheses, there will be a horizontal shift. The goal is to maintain zero within the parentheses so you will shift left 
 radians.
Compare your answer with the correct one above
Write the equation for a sine graph with a maximum at 
 and a minimum at 
.
Write the equation for a sine graph with a maximum at  and a minimum at 
.
To write this equation, it is helpful to sketch a graph:

Indicating the maximum and minimum points, we can see that this graph has been shifted up 1, and it has an amplitude of 2.
The distance from the maximum to the minimum point is half the wavelength. In this case, the wavelength is 
. That means the full wavelength is 
, and the frequency is 1.
This sketch shows that the graph starts to the left of the y-axis. To figure out exactly where, subtract 
 from the maximum x-coordinate, 
:
 .
Our equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This graph has an equation of
.
To write this equation, it is helpful to sketch a graph:

Indicating the maximum and minimum points, we can see that this graph has been shifted up 1, and it has an amplitude of 2.
The distance from the maximum to the minimum point is half the wavelength. In this case, the wavelength is . That means the full wavelength is 
, and the frequency is 1.
This sketch shows that the graph starts to the left of the y-axis. To figure out exactly where, subtract  from the maximum x-coordinate, 
:
 .
Our equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This graph has an equation of
.
Compare your answer with the correct one above
Write the equation for a cosine graph with a maximum at 
 and a minimum at 
.
Write the equation for a cosine graph with a maximum at  and a minimum at 
.
In order to write this equation, it is helpful to sketch a graph:

The dotted line is at 
, where the maximum occurs and therefore where the graph starts. This means that the graph is shifted to the right 
.
The distance from the maximum to the minimum is half the entire wavelength. Here it is 
.
Since half the wavelength is 
, that means the full wavelength is 
 so the frequency is just 1.
The amplitude is 3 because the graph goes symmetrically from -3 to 3.
The equation will be in the form 
 where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This equation is
.
In order to write this equation, it is helpful to sketch a graph:

The dotted line is at , where the maximum occurs and therefore where the graph starts. This means that the graph is shifted to the right 
.
The distance from the maximum to the minimum is half the entire wavelength. Here it is .
Since half the wavelength is , that means the full wavelength is 
 so the frequency is just 1.
The amplitude is 3 because the graph goes symmetrically from -3 to 3.
The equation will be in the form  where A is the amplitude, f is the frequency, h is the horizontal shift, and k is the vertical shift.
This equation is
.
Compare your answer with the correct one above