What is the significance of the absolute value of 'a' in determining the amplitude?
How to Determine the Amplitude and Period of a Graph
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Mathematics
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9th - 10th Grade
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Hard
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The video tutorial explains how to determine the amplitude and period of a trigonometric function. It uses the example of y = -3/2 * cos(πx/2) to illustrate the process. The amplitude is found by taking the absolute value of the coefficient of the cosine function, resulting in 3/2. The period is calculated by considering the coefficient of x, which involves dividing 2π by π/2, simplifying to a period of 4. The tutorial emphasizes understanding the impact of each parameter on the graph of the function.
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OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Explain how the coefficient of X affects the period of a trigonometric function.
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