Question

Write a cosine function that has an amplitude of 4, a midline of 2 and a period of1

Answer 1

see below

Explanation:

start with cos (x)

amplitude 4

4 cos x

midline 2

4 cos (x ) + 2

period of 1 : 2 pi / 1 = 2 pi

multiply x by 2pi

4 cos ( 2 pi x) + 2