Question

Couple Trigonometry Questions Please Help!

Answer 1

1. True or False: The graph of y = 4sin(x + 3) - 2 is obtained by shifting the graph of y = 4sin x - 2 horizontally 3 units to the left

Answer 2

2. True or False: 10. Reflecting the graph of y = cos x across the y-axis is the same as not reflecting it at all.

Answer 3

3. 9. Which equation represents the graph of y = cos x flipped across the x-axis then shifted vertically up by 2 units?
A. y = -cos x + 2
B. y = -cos x - 2
C. y = cos(x - 2)
D. y = cos(-x) + 2

Answer 4

\( \Huge 1)\color{red}{ \text False}\)

Answer 5

\(\Huge2)\color{green}{\text True}\)

Answer 6

4. What is the period of the sinusoid given by \[y=-3\cos \left( \frac{ 2\pi }{ 5 } x\right)\]

Answer 7

I think #3 is C?

Answer 8

\(\Huge 3)\color{green}{\text A }\)

Answer 9

C is wrong :)

Answer 10

Oh yea I see what I did wrong with #3...What about #4 how do I find the period?