Question

I need help like really fast please.
Pic Attatched

Answer 1

Please don't tag the whole world.

Can you find the maximum values? That would be a good place to start.

Answer 2

kay. 2?

Answer 3

How about the minimum value?

Answer 4

-2

Answer 5

Now, you are ready to answer the Amplitude Question. The normal cosine has a minimum of -1 and a maximum of +1. Its amplitude is one (1). What is the amplitude of this cosine function?

Answer 6

How do i find that

Answer 7

It requires thinking and understanding only.

Regular Cosine function
Min = -1, Max = 1, Amplitude = 1
This cosine function
Min = -2, Max = 2, Amplitude = ??

Answer 8

oh 2?

Answer 9

Done! How about the period. How long does it take to complete one total round of its pattern? Start at (0,2) and check it out.

Answer 10

Uhh 2?

Answer 11

orr -2

Answer 12

Look at the x-values. Start from (0,2). It dives until it gets to \((\pi/4,-2)\) and then starts back up until it finds \((\pi/2,2)\)

Okay, how much of the x-axis did use to get back where we started?

Answer 13

i dont get what your asking

Answer 14

Trace your finger along the x-axis. Start at x = 0 and move slowly to the right. Keep your mind on the y-value of the graph as you move along. What happens to the y-values and how far along are you along on the x-axis when the y-value gets back to +2?

Answer 15

Im cofused

Answer 16

You need to find your book. Read all the material on "period". They should describe what "period" means. It should explain how it describes certain repetitive behaviors. You cannot solve this problem if you have no relationship with the "period".