Question

Two people are swinging a jump rope. The height of the middle of the rope, in inches, can be modeled by a cosine function with an amplitude of 36 inches. If the minimum point that the middle of the rope reaches is 3 inches above the ground, what is the maximum point that the middle of the rope reaches?

A.
75 inches
B.
39 inches
C.
36 inches
D.
72 inches

Answer 1

Answer:75 inches

Step-by-step explanation: I got it right on edmentum

Answer 2

B. 39 inches

Explanation:

The amplitude is the difference between the function's maximum and minimum values.

3 in. + 36 in. = 39 in.

Answer: B. 39 inches