please help with this graph ‼️

Answer:
f(x) = 4 , at x= 0
And f(-2) = 2
Step-by-step explanation:
From the given diagram,
We have a function f(x) that describes the corresponding value for each x value.
i.e y = f(x)
Now we need to find x value where f(x) = 4
We can see, f(x) = 4 at only one point, that is at x=0
Next we need to find f(-2).
i.e value of f(x) at x= - 2.
so from the figure at x= -2, f(-2) = 2