Respuesta :

Answer:

C) 4

Step-by-step explanation:

Given equation:

[tex]2y=8x[/tex]

The above equation represents proportional relationship.

To find the constant of proportionality.

Solution:

The equation representing proportional relationship is given by:

[tex]y=kx[/tex]

where [tex]k[/tex] represents constant of proportionality.

So, in order to find the value of [tex]k[/tex] for the given proportionality relationship, we will solve for [tex]y[/tex]

We have:

[tex]2y=8x[/tex]

Solving for [tex]y[/tex]

Dividing both sides by 2.

[tex]\frac{2y}{2}=\frac{8x}{2}[/tex]

[tex]y=4x[/tex]

∴ [tex]k=4[/tex]

Thus, the constant of proportionality = 4.