Answer
Direct variation
Constant is -$\frac{2}{3}$
Work Step by Step
You have 2x+3y=0
2x+3y=0 -subtract 2x from both sides-
3y=-2x -divide by 3-
y=-$\frac{2}{3}$x
The constant of variation is the coefficient of X so the constant of variation is -$\frac{2}{3}$