Determine If the Function Is a Power Function $$f ( x ) = 5 x ^ { 3 / 7 }$$

Multiple Choice

Determine if the function is a power function. If it is, then state the power and constant of variation.
- $$f ( x ) = 5 x ^ { 3 / 7 }$$

A) Power is $\frac { 3 } { 7 } ;$ constant of variation is 5
B) Power is 5; constant of variation is $\frac { 3 } { 7 }$
C) Not a power function
D) Power is $\frac { 7 } { 3 } ;$ constant of variation is 5