Answer: The first option.
Step-by-step explanation:
1. You need to remember that:
- An even function is a function with the following property:
f(-x)=f(x)
- An odd function is a function with the following property:
f(-x)=-f(x)
2. By definition, the contangent is an odd function, therefore you have that:
cot(-θ)=-cot(θ)
Then:

3. So, you can coclude that the first step is wrong. Therefore, the answer is the first option.
Answer is b I just did it

So, in the list of numbers, 8 and 9 are solutions
Answer:
f(-2) = 2
Step-by-step explanation:
The question is asking you to find the y value when the x value is -2. When observing the graph, we can see when the x value is -2, the y value is 2. Therefore, f(-2) = 2.