State Whether the Function Is a Polynomial Function or Not $$f ( x ) = \frac { x ^ { 4 } - 7 } { x ^ { 5 } }$$

Multiple Choice

State whether the function is a polynomial function or not. If it is, give its degree.

- $$f ( x ) = \frac { x ^ { 4 } - 7 } { x ^ { 5 } }$$

A) Yes; degree 5
B) Not a polynomial
C) Yes; degree -5
D) Yes; degree 4