Select the correct answer from each drop-down menu.
Which transformation causes the described change in the graph of the function y = cos x?
The transformation
cos(3x)
results in a horizontal compression.

The transformation
-5cos(x)
results in a vertical stretch.

The transformation
cos(x/3)
results in a horizontal stretch.

The transformation
2/3 cos(x)
results in a vertical compression.

this is for anyone who needs the answers on the trigonometric relationships posttest in the future
i got you bro, cheers to my fellow plato students