Suppose the y varies directly with x and y=8 when x=-6 what direct variation equation relates x and y what is the value of y when x=-2

A. Y=-0.75x,1.50
B. Y=-1.33x,2.67
C.y=1.33x,2.67
D. Y=0.13x, -0.25

Respuesta :

Answer:

B

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition that y = 8 when x = - 6, thus

k = [tex]\frac{y}{x}[/tex] = [tex]\frac{8}{-6}[/tex] = - [tex]\frac{4}{3}[/tex] ≈ - 1.33

y = - [tex]\frac{4}{3}[/tex] x ← equation of variation

When x = - 2, then

y = - [tex]\frac{4}{3}[/tex] × - 2 = [tex]\frac{8}{3}[/tex] ≈ 2.67

The answer is b !!!!i think