5. Marco wrote the equation below. (1 point) COS COS Which statement best descri

Question

5. Marco wrote the equation below. (1 point) COS COS Which statement best describes Marco's equation? O It is true, because the cosine function is odd. O It is false, because the cosine function is even. It is true, because the cosine function has a period of 2T. O It is false, because the cosine function has a period of T. 6. Which of the following statements about the function f(x) 3sec(X) are true? Select all that (2 points apply. f(x) has no zeroes f(x) has a period of 2T. f(x) has an amplitude of 1. f(x) is symmetric about the origin. f(x) has asymptotes at integer multiples of T.

Explanation / Answer

5. It is true because cosine function is odd .

6. sec x

Amplitude=1

7. f(x)=4 cot(3t - 3pi/4)+2

Phase shift =C/B= 3pi/4/3=pi/4

pi/4 in right direction.

8. f(x)= sin(x/2 + pi/6)

Period =2pi/B=2pi/1/2=4pi

9. f(x)=(1/4)cos(x+pi/3)-1

Here the amplitude=1/4

And horizontal shift by pi/3 in the left direction .

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