Respuesta :

\left[y \right] = \left[ 0\right][y]=[0] totally answer

Answer:

Constant of proportionality in the given equation is, 2.5

Step-by-step explanation:

The Direct proportionality says that:

[tex]y \propto x[/tex]

then, the equation is of the form : y = kx   .....[1] where k is the constant of proportionality.

Given the equation: [tex]y = 2.5x[/tex]

On comparing given equation with [1] we get;

k = 2.5

Therefore, constant of proportionality in the given equation is, 2.5