Determine If the Function Is a Power Function $$\mathrm { C } = 2 \pi \mathrm { r }$$

Multiple Choice

Determine if the function is a power function. If it is, then state the power and constant of variation.
- $$\mathrm { C } = 2 \pi \mathrm { r }$$

A) Not a power function
B) Power is 1; constant of variation is $2 \pi$
C) Power is 0 ; constant of variation is $2 \pi$
D) Power is 2; constant of variation is $\pi$