What is the constant of proportionality of y=6.78x

k = 6.78

Step-by-step explanation:

If two variables x and y are respectively the independent and dependent variables and they are proportional to each other, then we can write the mathematical expression as y ∝ x.

This gives, y = kx ... (1)

Where k = proportionality constant.

Now, we are given a linear equation of x and y and we have to get the constant of proportionality.

The given equation is y = 6.78x ... (2)

Now, comparing equation (1) and (2) we get k = 6.78. (Answer)