I don't understand this. can you please tell how you got each answer?

Question

describe how the graph of each function is related to a basic trigonometric graph.

1. y= 1/2cos x
2. y= 2cos x+1
3. y= sin x-4
4. y= sin(x-4)
5. y= sin(3x)
6. y= cos(1/2x)
7. y= -cos x
8. y= -cos x+2
9. y= -4sinx
10. y= 4sin(-x)

Pleeease help! thank you!

Answer 1

In google type:
functions graphs online

When you see list of results click on: rechneronline.de/function-graphs/

When page be open in blue rectangle type:

1/2cos(x)

And click option: Draw

then type :

2cos(x)+1 OR 2cos (x+1)

And click option: Draw

etc.

You must write correct expresions.

Answer 2

thank you!

Answer 3

how does that tell how the graph of the function is related to a basic trigonometric graph?