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3 years ago

12

4. What is the domain? Explain. (1 point)

1 answer:

sp2606 [1]3 years ago

8 0

Answer:

20

Step-by-step explanation:

each time the numbers are up by 20 years

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A cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shif

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We have been given that a cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shift is 9 units down, and the period of the function is $\frac{7\pi}{12}$ . The graph of the function does not show a phase shift. We are asked to write the equation of our function.

We know that general form a cosine function is $y=A\cos(b(x-c))-d$ , where,

A = Amplitude,

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c = Horizontal shift,

d = Vertical shift.

The equation of parent cosine function is $y=\cos(x)$ . Since function is reflected about x-axis, so our function will be $y=-\cos(x)$ .

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Upon substituting our given values in general cosine function, we will get:

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