In class practice Sine and Cosine Transformations

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Mathematics
•
10th - 12th Grade
•
Easy
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1.
FLASHCARD QUESTION
Front
What is the sine function?
Back
The sine function, denoted as sin(x), is a periodic function that describes the y-coordinate of a point on the unit circle as it rotates around the origin. It has a range of [-1, 1] and a period of 2π.
2.
FLASHCARD QUESTION
Front
What is the cosine function?
Back
The cosine function, denoted as cos(x), is a periodic function that describes the x-coordinate of a point on the unit circle as it rotates around the origin. It has a range of [-1, 1] and a period of 2π.
3.
FLASHCARD QUESTION
Front
What is the amplitude of a sine or cosine function?
Back
The amplitude is the maximum distance from the midline of the graph to its peak (or trough). It is determined by the coefficient in front of the sine or cosine function.
4.
FLASHCARD QUESTION
Front
What is the period of a sine or cosine function?
Back
The period is the distance along the x-axis required for the function to complete one full cycle. For the function y = sin(kx) or y = cos(kx), the period is given by 2π/k.
5.
FLASHCARD QUESTION
Front
How do you determine the phase shift of a sine or cosine function?
Back
The phase shift is determined by the horizontal translation of the function. For f(x) = a sin(b(x - c)) or f(x) = a cos(b(x - c)), the phase shift is c units to the right if c is positive and to the left if c is negative.
6.
FLASHCARD QUESTION
Front
What is the equation for a cosine function with an amplitude of 5 and a period of π?
Back
The equation is y = 5cos(2x). (Since the period is π, k = 2, and the amplitude is 5.)
7.
FLASHCARD QUESTION
Front
What is the phase shift of f(x) = 2sin(3x + π)?
Back
The phase shift is -π/3 units to the left.
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