Classify the Function as a Polynomial Function, a Rational Function $$f ( x ) = - 8 x ^ { - 7 } - x ^ { - 5 } - 7$$

Short Answer

Classify the function as a Polynomial function, a Rational function, an algebraic function, or other.
$$f ( x ) = - 8 x ^ { - 7 } - x ^ { - 5 } - 7$$