4
QuizMultiple Choice

Graphing Sine and Cosine Functions

Question 4 • S1S-OC: Pre-Calculus A (E3700 - AG)

The musical note E can be modeled by the function, y = asin(1320πx), where a = 1 and x is the time in seconds. Playing note E on your computer, you notice that it is not loud enough to be heard across the room.What change can you make to the function to make note E louder than the original?

Answer
A
Let a < 0.
B
Let a > 0.
C
Let a > 0 and a < 1.
D
Let a > 1 or a < –1.
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