A function assigns the value of each element of one set to the other specific element of another set. The correct option is B.
What is a Function?
A function assigns the value of each element of one set to the other specific element of another set.
The interval of the function for which the given graph is constant is when the value of x is less than -2 and when the value is greater than -4. Therefore, we can write this interval as -4< x < -2.
Hence, the correct option is B.
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