The simplified expression of the function is
. f(x) is increasing for all x > –4.The correct answer is option C.
A function is defined as a relation between the set of inputs having exactly one output each.
The function expression is given as:
Expand the denominator
Factorize the denominator
Factor out x + 9
The simplified expression of the function is
. f(x) is increasing for all x > –4
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