Question

Does the equation represent a direct variation? If so, find the constant of variation.

5x = -3y
A. no
B. yes; k = -5/3
C. yes; k = 5/3
D. yes; k = 3/5

Answer 1

direct variation is written as:
\[\Large y= k \cdot x \ \ or \ \ k=\frac yx\] ... where k is constant

if you can rewrite the equation as y=kx then yes

Answer 2

\[\LARGE 5x=-3y\] divide both sides by -3

Answer 3

okay thanks