Question 1

1.  State the amplitude and period of $y=2cos(2x- 3\pi)+1$

Accepted Answer

Amplitude = 2.  Period = $\pi$

Answer

Amplitude = -2.  Period = $\frac{3\pi}{2}$

Answer

Amplitude = -2.  Period = $\pi$

Answer

Amplitude = 2.  Period = $\frac{3\pi}{2}$

Question 2

2.  State the phase shift and vertical shift of $y=2cos(2x-3\pi)+1$

Accepted Answer

Phase shift = $\frac{3\pi}{2}$  Vertical shift = Up 1

Answer

Phase shift = $-2\pi$  Vertical shift = Up 1

Answer

Phase shift = $-\frac{3\pi}{2}$  Vertical shift = Down 1

Answer

Phase shift = $2\pi$  Vertical shift = Down 1

Question 3

3.  Graph $y=2cos(2x-3\pi)+1$

Accepted Answer

https://uploads.quizalize.com/ad3ae995-7743-4852-a6c5-510534f26480/question/0087be0e68c389be903998f5a1827c5ac3de45ec.png

Answer

https://uploads.quizalize.com/ad3ae995-7743-4852-a6c5-510534f26480/question/cdd16ba7a239af20612e9a7f25e230b70f07c5eb.png

Answer

https://uploads.quizalize.com/ad3ae995-7743-4852-a6c5-510534f26480/question/4662a08ed32d482c868995e88c5e3bef3fbdabfa.png

Answer

https://uploads.quizalize.com/ad3ae995-7743-4852-a6c5-510534f26480/question/225a1ef433c203527d14ecf998b3f756dc09e1bf.png

Question 4

4.  Find $tan \frac{2\pi}{3}$

Accepted Answer

$-\sqrt{3}$

Answer

$\frac{\sqrt{3}}{3}$

Answer

$\sqrt{3}$

Answer

$\frac{-\sqrt{3}}{3}$

Question 5

5.  Find $csc \frac{5\pi}{2}$

Accepted Answer

1

Answer

undefined

Answer

0

Answer

-1

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