Question

A. Y= -3cos(4x)
B. Y= 3cos(4x)
C. Y= 3cos(1/4x)
C. Y= 3cos(pi/2x)

Answer 1

What is the question?

Answer 2

Choose the function whose graph is given by. I don't know which one fits the graph

Answer 3

Well, all depends on the graph.

Answer 4

It's the attachment it has the picture of the graph

Answer 5

These are the plots of the functions,
a) https://www.wolframalpha.com/input/?i=Plot%5B-3cos(4x),%7Bx,-2,2%7D%5D
b) https://www.wolframalpha.com/input/?i=Plot%5B3cos(4x),%7Bx,-2,2%7D%5D
c) https://www.wolframalpha.com/input/?i=Plot%5B3cos(1%2F4x),%7Bx,-2,2%7D%5D
d) https://www.wolframalpha.com/input/?i=Plot%5B3cos(pi%2F2x),%7Bx,-2,2%7D%5D

Answer 6

Check which one fits the one you have in the graph.

Answer 7

Thanks a lot