Which of the following describes the translation of the graph y = 3 cos x + 2 with respect to y = cos x?

Question

asked Mar 13, 2023 48.5k views

1 Answer

Kanstraktar · Answer 1 · 2023-03-19T02:06:12+0000

In our case the parent function is y=cos x. If we stretch the amplitud by 3 units, we get

$y=3\text{cosx}$

and finally, if we translate this function 2 units up, we have

$y=3\text{cosx}+2$

which correspond to the second option from top to bottom.