Answer:
B. 4m
Step-by-step explanation:
What you do is you just take the 8 and put it into the m.
m-8, 8-8=0 so A isn't your answer.
4m, 4(8)=32 so B is your answer.
B. 4m is your answer.
Answer:
<em><u>y = d + a · cos(bx - c) ⇒ y = -4cos(4/3x)</u></em>
Amplitude = |a| = |-4| = 4
Period = 
Is it clockwise rotation or counterclock wise?
If it’s clockwise rotation then C is the answer but if it’s counter lock wise rotation then the answer is A.
Hope this helps!