Question

What is the amplitude of the sinusoidal function? 20 points

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I got -4 but I don't know if that's right.

Answer 1

Answer:

4

Step-by-step explanation:

The magnitude of the sine wave is from the maximum to the minimum

max = 1

min = -7

magnitude = 8

The amplitude is 1/2 the magnitude.  It is always positive

Amplitude = Magnitude/2 = 4