Question 1

Which of the following equations best represents the graph shown in the image?

Accepted Answer

$$y = 3 \cos(2x)$$

Question 2

What is the amplitude of the function shown in the graph?

Accepted Answer

$$3$$

Question 3

What is the period of the function shown in the graph?

Accepted Answer

$$\pi$$

Question 4

If the function in the graph is $$y = 3 \cos(2x)$$, what is the frequency of the function?

Accepted Answer

$$2$$

Question 5

Which transformation would shift the graph of $$y = 3 \cos(2x)$$ upward by 2 units?

Accepted Answer

$$y = 3 \cos(2x) + 2$$

Identifying a Trigonometric Function from Its Graph

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