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Blababa [14]
3 years ago
7

What is the amplitude, period, and phase shift of f(x) = -4 sin(2x + π) - 5?

Mathematics
2 answers:
creativ13 [48]3 years ago
7 0

Answer:

Amplitude of the function is 4, period of the function is π and phase shift of the function is -\frac{\pi}{2}.

Step-by-step explanation:

The given function is

f(x)=-4\sin(2x+\pi)-5              .... (1)

The general form of a sine function is

f(x)=A\sin(Bx+C)+D            .... (2)

where, |A| is amplitude, \frac{2\pi}{B} is period, -\frac{C}{B} is phase shift and D is midline.

From (1) and (2) we get

A=-4,B=2, C=\pi,D=-5

|A|=|-4|=4

Amplitude of the function is 4.

\frac{2\pi}{B}=\frac{2\pi}{2}=\pi

Period of the function is π.

-\frac{C}{B}=-\frac{\pi}{2}

Therefore the phase shift of the function is -\frac{\pi}{2}.

son4ous [18]3 years ago
3 0
F(x) = -4sin(2x + π) - 5

<u>Amplitude</u>
A = -π

<u>Period</u>
<u>2π</u> = <u>2π</u> = π
 B      2

<u>Phase Shift</u>
<u>-C</u> = <u>-π</u> = ≈ 1.57<u>
</u> B      2<u>
</u>
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