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Kryger [21]
3 years ago
11

What is the amplitude, period, and phase shift of f(x) = −2 sin(3x − π) − 1?

Mathematics
1 answer:
qaws [65]3 years ago
7 0

Answer:

Amplitude = 2; period = two times pi over three; phase shift: x equals pi over three

Step-by-step explanation:

The given function is f(x)=-2 \sin(3x-\pi)-1

Comparing to f(x)=a \sin(bx-c)+d, we have a=-2 , b=3, c=\pi and d=-1.

The amplitude is |a|.

This implies that amplitude is |-2|=2

The period is \frac{2\pi}{|b|}

This implies period is \frac{2\pi}{3}

The phase shift is x=\frac{c}{b}

This implies that phase shift is x=\frac{\pi}{3}

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