3 years ago

Which graph represents the function y = cos(4x)? Answer is graph B

Mathematics

2 answers:

VARVARA [1.3K]3 years ago

7 0

Answer:

Step-by-step explanation:

Let the equation of the cosine function is,

y = Acos(Bx)

From the graph attached,

A = Amplitude = $\frac{1-(-1)}{2}$

= 1

B = $\frac{2\pi}{\text{Period}}$

B = $\frac{2\pi}{\frac{\pi}{2}-0}$

B = $\frac{4\pi}{\pi}$

B = 4

Therefore, equation of the cosine wave given in the graph will be,

y = 1.Cos(4x)

y = Cos(4x)

nirvana33 [79]3 years ago

7 0

Answer:

Step-by-step explanation:

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