
Precal Unit 7: Writing Sine and Cosine Functions From Graphs
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the period of a sine or cosine function?
Back
The period is the distance along the x-axis for one complete cycle of the wave. For the function $$y = A \sin(Bx)$$ or $$y = A \cos(Bx)$$, the period is given by $$\frac{2\pi}{|B|}$$.
2.
FLASHCARD QUESTION
Front
How do you find the amplitude of a sine or cosine function?
Back
The amplitude is the maximum distance from the midline of the graph to the peak (or trough). For the function $$y = A \sin(Bx)$$ or $$y = A \cos(Bx)$$, the amplitude is given by $$|A|$$.
3.
FLASHCARD QUESTION
Front
What is the parent function of the sine function?
Back
The parent function of the sine function is $$y = \sin(x)$$.
4.
FLASHCARD QUESTION
Front
What is the parent function of the cosine function?
Back
The parent function of the cosine function is $$y = \cos(x)$$.
5.
FLASHCARD QUESTION
Front
If the period of a sine function is 1, what is the value of B?
Back
If the period is 1, then $$B = 2\pi$$ because the period is given by $$\frac{2\pi}{|B|} = 1$$.
6.
FLASHCARD QUESTION
Front
If the amplitude of a cosine function is 2, what is the value of A?
Back
If the amplitude is 2, then $$A = 2$$ because the amplitude is given by $$|A|$$.
7.
FLASHCARD QUESTION
Front
What is the effect of changing the value of B in the function $$y = A \sin(Bx)$$?
Back
Changing the value of B affects the period of the sine function. The period is given by $$\frac{2\pi}{|B|}$$.
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