Answer:
The correct answer is "(-3,-1)".
Step-by-step explanation:
The function, f(x), is a binary relation that describes an association between an element "f" and a second element "x". The simplest f(x) describes a direct association, where the value of "f" is determined directly by the value of "x". This is the case of this example and, according to the table, the interval of x-values over which the function is increasing is (-3,-1). This can be noted by seeing the value of f(x) where x is "-3", which is "-11"; and seeing the value of f(x) where x is "-1", which is "-1". Since the difference between -11 and -1 is +10, we can determine that the function is increasing in this interval. I attached the missing table.