Answer:
cos(x)+1 or cos x + 1
Step-by-step explanation:
The wave starts at y=2 this means it is a cosine function, then the first positive x-intercept is at about (pi, 0) which is about 3, this leads to cos x + 1 as the answer.
13
4/2=2
5*2 = 10
10 +3 =13
This is a problem of composition functions.
On the other hand:
So let's find each value as follows: