Answer:
i don't get what you need answered in this????
Step-by-step explanation:
Answer:
I'm going to edit this later, but do you have the full question?
Answer:66 slower speed
Step-by-step explanation:
Answer:
The minimum value of y is -7
Step-by-step explanation:
Given: 
We are given a cosine function.
We need to find minimum value of function.

Here y is depends on cosine function.
y is minimum when cosine is minimum because y is directly proportional to cosine function.
Minimum value of cos x is -1
Therefore, For minium value of y

Minimum value of y


Hence, The minimum value of y is -7