A: 100 cm³
This is because the others can be multiplied by something 3 times to get it, but A can not.
Answer: A) y = -4
<u>Step-by-step explanation:</u>
The midline is usually at y = 0. In the given equation, the graph is shifted down 4 units so the new midline is at -4.
You are tackling a trigonometry question here. I recommend remembering the functions and drawing the triangle out.