Write an Equation That Expresses the Relationship $\mathrm { v }$

Multiple Choice

Write an equation that expresses the relationship. Use k as the constant of variation.
-c varies directly as $\mathrm { v }$ .

A) $\mathrm { c } = \mathrm { kV }$
B) $\mathrm { c } = \frac { \mathrm { k } } { \mathrm { v } }$
C) $\mathrm { k } = \mathrm { cV }$
D) $v = \frac { k } { c }$