k = - [tex]\frac{2}{3}[/tex] → A
the equation for direct variation is y = kx ( k is the constant of variation )
thus k = [tex]\frac{y}{x}[/tex]
given - 6y = 4x is a direct variation equation then
k = [tex]\frac{4}{- 6}[/tex] = - [tex]\frac{2}{3}[/tex]
k =
