-4/5 cause m=y^2-y^1/x^2-x^1
Btw check if it is correct
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
Answer:
a?
Step-by-step explanation:
Whats the original question you got from your teacher