Which function has an amplitude of 3 and a period of ? y = 3 sin (5) -
y = - 3 cos 4x
y = - 3 sin 472
y = cos 372

The correct option is 3.

Step-by-step explanation:

From the given figure it is clear that the coordinates of B are (-7,2).

If triangle ABC is reflected over the x-axis, then

After that it rotated 180 degrees,

Then it reflected over the y-axis,

The coordinates of B' are (-7,2).

Therefore, the correct option is 3.